Youtube daily report May 15 2018

Chloe: Try anything.

It's okay to fail and make bad songs or bad beats.

I've made plenty bad beats.

Halle: That's always been a theme that our parents have drilled in us.

We are capable of doing so much and we can figure anything out with ourselves and with

our own minds.

I think that's kind of why we gravitated towards each other, because two brains is better than one.

Chloe: How my sister and I got into making beats.

I think it just kind of came secondary when we were just writing our original music and

our own songs.

It was very experimental for us.

We kind of just found our way by figuring it out.

Halle: Yeah, my sister has always been so savvy with technology and so smart, so this

type of stuff comes very easy to her.

And it's really fun, because it's just a creative process in our living room and we're just

... Whatever she plays I just kind of sing melodies and then we just kinda catch a vibe

from there.

Chloe: This is where we create all of our music, guys.

I'm just gonna show you, so like, got our monitor, keyboard, and then this is where

we record everything.

Chloe: So when we first started creating the song "Warrior," we started off with these

chords, with this synth.

Chloe: My favorite plug-in is Omnisphere.

That plug-in has the coolest sounding synths that are different and still like familiar

in a way.

Halle: We were throwing out melodies and the melody that came first was the "I could be a warrior."

Chloe: Yeah, it was literally like…

Halle: "I could be a warrior."

"Yes I am a warrior."

"There's no need to worry love."

"Look around, it's glorious."

"Close your eyes and taste the sun."

And when we first heard that we were like, "Hmm, that's kinda cool."

Chloe: So next I kind of just transposed that main synth sound, and just an octave lower

so it has a little bit of aggression to it.

Chloe: And then after that, I continued layering the synths.

Just an arpeggiated scale of what we were playing, but it was higher with that same

synth and it was like ...

Halle: This sound reminded me of a video game.

One of my favorite sounds that my sister used was definitely this choir sound.

Chloe: When we add our backgrounds and our harmonies with it, it kind of compliments

pretty nicely and well.

Chloe: And it made it feel like church, in a way.

Like a cathedral or something.

No matter how delicate or light the song is, we always add 808s.

Halle: Always 808s.

Chloe: Always.

No matter what.

Halle: They just make it feel better.

Chloe: Yeah.

I use 808 Warfare a lot.

I love the slide 808s because it's not just some simple "Boom, boom, boom," but it goes

like "Boom, BOOM, boom."

Halle: You know, it just adds that extra bang.

Chloe: Yeah, the heartbeat.

Halle: Yeah, it kinda gave us that, "Oh, what's this?"

Chloe: Stank on it.

Like even though it's a movie song you can add a little stank on it.

Halle: Yeah

Chloe: So that's what the 808s help do.

The organ just played the same exact parts that the other synths played, but it just

added another layer.

Chloe: Classic, but old school.

Chloe: Time to get to the fun part.

The drums.

My favorite part.

With our drums, we love to layer.

If you just use like, one kick and one snare, that's great and all, but we like multidimensional.

Halle: She's really good at layering.

Chloe: So then the stomps came.

And then, because I love to layer my drums I like it to be very rhythmic.

Chloe: It feels tribal in a way, and I like that because the drums weren't just your typical

stomp, clap, stomp, clap.

Of course I had to add some hi-hats.

Chloe: There's this transition sound, this like reverse breath.

Chloe: And of course we had to add some percussive instruments in there, like the crashes and

this really cool "Hey!"

Chloe: Ms. Ava DuVernay, the director of the movie 'A Wrinkle in Time,' she reached

out to our team and she was like, "Hey girls, I'd love to have a song from you two for this movie."

"Do you have anything?"

Halle: Yeah, so we sent it off to her.

Chloe: The same night!

Halle: Yes.

The same night.

She loved the song and she wanted to hop on a call with us.

She said, "Maybe just add something in the verse to make it feel like cinematic earlier

in the song, since I'm going to be using a whole minute of it in the film.

So it can get to the point."

And so beautiful sister here thought, "Oh, cool.

I'll just add strings in the first verse, so that it feels more dynamic and that it

feels like it's building faster," and that's exactly what she did!

Chloe: It kind of took the song to another place, even when we already liked it.

That just comes to show you can always make things better.

Chloe: Whenever my sister and I write the song, we want the song to feel very personal.

We don't want it to sound preachy at all, and sometimes inspirational songs can get

to that preachy stage.

Halle: Preachy.

Yeah.

Chloe: But in order to avoid that, you have to speak from your heart.

Halle: And speak to yourself, I feel like is what helps.

It's kind of like a gradual build up of you telling yourself like, "I can be a warrior.

Yes I am a warrior.

Okay, I can do this."

Chloe: "There's no need to worry love."

Halle: Yeah, and just building up that confidence within yourself.

I feel like many people can sit with that and relate to that in feeling like, "Okay, here I go."

Chloe: "Uh oh."

Someone told us they use it as their workout song!

Halle: I know.

I was so surprised!

Chloe: I know!

I never thought of it as a workout song, but alright!

Do you!

For more infomation >> The Making Of Chloe x Halle's "Warrior" | Deconstructed - Duration: 6:53.

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Carey Price's path from Junior to the NHL - Duration: 2:39.

Outside of his technical side, which we saw right away, we knew he was talented as a goaltender.

Just as a teammate... tremendous teammate.

Just his demeanor in the net. He never got rattled. He was very calm, cool. He was a winner.

I mean, he proved that at a young age, whether it was the World Juniors in shootouts against the U.S.;

He was a calm, cool, collected guy and... everywhere he went he won.

His last year in Junior he graduated, went to Montreal, and they put him I believe in Hamilton, and...

You know what, he up seated their number-one guy, started most of the games,

and ended up being the MVP that year, and won the Calder Cup. Not many young guys do that.

Well he was my first Major Junior coach.

I mean my only Major Junior coach, and he had a really big impact on me from the start.

You know, as a rookie he taught me a lot of lessons about being a professional,

and working towards being a professional. He put a lot of trust in me.

He played me a lot as a 16 year old, and truly helped my development.

A lot of 16 year olds come into Major Junior to get their feet wet, to learn the league.

He came in with a plan. If kids are ready to play at a young age, you play them.

And in his case he was ready to play.

He was very mature mentally, and technically he was off the charts.

You don't see kids, you know, first with his size, that moved around the ice with that kind of confidence.

So, you know what, we put him in the net and he ran with it.

You know, I know it's not... It's probably not very easy to...

To trust a 16 year old.

You know, but I feel like...

You know, we're from the same area in B.C. and I was playing well for him, so...

I feel like I just gave him the opportunity to... or I gave no reason not to play me.

He remembers where he's from. He gives back to the communities where he's from.

He's done that in his Junior city, in Tri-Cities, he's done that is in his hometown.

In the summers when he comes to Tri, where I have a home, he usually reaches out to me.

We went fishing last summer. It's a special relationship, but I value that.

There's a lot of kids you coach that you lose touch with. He hasn't been one of them.

He's definitely, you know, top three.

Obviously along with my dad, my mom.

My billet parents in Tri-Cities made a big impact on me in my young career too.

I feel like that's what it takes to help young hockey players today

For more infomation >> Carey Price's path from Junior to the NHL - Duration: 2:39.

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FLIP THE GUN 【HACK / MOD .APK 】V1.0.1 *UNLIMITED COINS, NO ROOT* 2018 - Duration: 8:01.

Don't get me wrong but I actually like broccoli.

For more infomation >> FLIP THE GUN 【HACK / MOD .APK 】V1.0.1 *UNLIMITED COINS, NO ROOT* 2018 - Duration: 8:01.

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Audi Q5 New 2.0 TFSI quattro s-tronic sport |ACC|Pano|Nappa - Duration: 1:09.

For more infomation >> Audi Q5 New 2.0 TFSI quattro s-tronic sport |ACC|Pano|Nappa - Duration: 1:09.

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✅ Brigitte Macron : Son sosie débarque dans "Un dîner presque parfait" ! - Duration: 2:33.

W9 a fait preuve de nouveauté pour son émission, Un dîner presque parfait ! En plus de diffuser des épisodes inédits toute la semaine du 14 au 18 mai 2018, la chaîne a invité ses téléspectateurs au Touquet, la célèbre station balnéaire

Les cinq candidats, qui concourent pour le titre de meilleur hôte, vont donc mettre à l'honneur la commune

Dans le premier épisode diffusé lundi dernier, on a pu découvrir une participante pas comme les autres : Anne-Catherine ! Anne-Catherine a littéralement volé la vedette à ses concurrents, Julie, Benjamin, Criss et Aurélie

Et pour cause, elle est la copie conforme de Brigitte Macron, notre Première Dame

Même chevelure blonde platine, même yeux bleus, même look et même silhouette, la candidate d'Un dîner presque parfait est le vrai sosie (encore non-officiel) de l'épouse du président, Emmanuel Macron

On verrait presque double comme les autres participants ! "Je vois Brigitte Macron entrer dans le salon, et là je me suis dit waouh, je ne m'attendais pas du tout à ça

J'étais un peu surpris !", a déclaré Criss. De son côté, Aurélie n'en a pas cru ses yeux : "Je ne savais pas que Brigitte avait une soeur jumelle

" La présence d'Anne-Catherine n'est certainement pas un hasard. Touquet est également la ville où Brigitte et Emmanuel Macron possède une maison

La ressemblance est donc d'autant plus surprenante ! "Je suis flattée parce que je trouve que c'est une très jolie femme qui a beaucoup d'allure

C'est toujours agréable de pouvoir être comparée à une icône", a déclaré Anne-Catherine

Vous trouvez qu'elle ressemble à Brigitte Macron, Anne-Catherine ?

For more infomation >> ✅ Brigitte Macron : Son sosie débarque dans "Un dîner presque parfait" ! - Duration: 2:33.

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Man with a Movie Camera. Colorized version. Dziga Vertov (1929). - Duration: 1:08:45.

Soviet Union

The end of the 1920s

Film print of the era

Genuine Encyclopedia camera and editing techniques

present

Painted by neural network documentary

MAN WITH A MOVIE CAMERA (Dziga Vertov, 1929 г.)

In 2012 in the survey of Sight & Sound magazine «The man with the camera» took eighth place in the list of the best films of all time

In 2014, Sight & Sound called the picture the best documentary of all times

Traveling in Western Europe in 1931, Dziga Vertov gives 35mm film "A man with a movie camera" National Institute cinematography in Amsterdam. From this unique full-frame The copy was subsequently refresh movie.

Musical accompaniment ALLOY ORCHESTRA written and executed in accordance with the instructions Dziga Vertov.

Initially, the film was divided into six numbered parts that coincide with 6 physical rolls of film. Later the division into parts was lost and in this form the film existed for over 70 years, but thanks to a single The surviving copy was again restored the original intention of the director.

It is unclear whether the film was released with initial titles or not, nevertheless, documents indicate the intention Vertova put a few phrases explain the essence of artistic idea at the beginning of the picture. Current titles are recreated based on the script of the film.

MAN WITH A MOVIE CAMERA A record in celluloid on three reels Produced by VUFKU 1929 (An excerpt from the diary of a cameraman)

FOR THE VIEWER'S ATTENTION: This film presents an experiment in the cinematic communication of visible events.

Without the aid of intertitles (A FILM WITHOUT INTERTITLES)

Without the aid of a scenario (A FILM WITHOUT A SCENARIO)

Without the aid of theatre (A FILM WITHOUT SETS, ACTORS, ETC)

This experimental work aims at creating a truly international absolute language of cinema based on its total separation from the language of theatre and literature.

Author-supervisor of the experiment DZIGA VERTOV

Chief cameraman MIKHAIL KAUFMAN

Assistant editor ELIZAVETA SVILOVA

Keep it clean

Bakhmetievsky (District) Bus Depot

Borzem (mineral water)

O.I. Mogutov's wine, vodka and food store

(Hair salon for) ladies and gentlemen

KEEP SILENCE

M(axim) Gorky

Izvestiya (All Union newspaper)

Bakhmetievsky (District) Bus Depot

The awakening (of a woman)

Mailbox

Tour of the passenger freighter "Lenin" from Odessa to Yalta

Spectacles Pince-Nez

Mail

Factory - Machines - Market

Wedding registration

Divorce registration

Expert shoeshine from Paris

The filmmaker

Cult(ural) questionnaire

Drop box for wall newspaper contributions

On sports

Green Manuela

Proletarian film theatre

Beer pub

Icon and candle store

Lenin workers' club, Odessa

The father of fascism

Vodka, beer, wine, eatery

Lenin club, the first five-year plan

Workers of the world unite

THE END

For more infomation >> Man with a Movie Camera. Colorized version. Dziga Vertov (1929). - Duration: 1:08:45.

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BMW 3 Serie 318i executive - Duration: 1:06.

For more infomation >> BMW 3 Serie 318i executive - Duration: 1:06.

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Ciudadanos ganará las elecciones en Madrid y Begoña Villacís será la nueva la alcaldesa - Duration: 3:18.

For more infomation >> Ciudadanos ganará las elecciones en Madrid y Begoña Villacís será la nueva la alcaldesa - Duration: 3:18.

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Hefty® Party Cups - Surprise ...

For more infomation >> Hefty® Party Cups - Surprise ...

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Mercedes-Benz GLC-Klasse 250 d Automaat Exclusive Line | Prestige - Duration: 1:13.

For more infomation >> Mercedes-Benz GLC-Klasse 250 d Automaat Exclusive Line | Prestige - Duration: 1:13.

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Mercedes-Benz S-Klasse S 350 d Lang AMG Prestige Plus Automaat | Netto € 65.000,-- - Duration: 1:10.

For more infomation >> Mercedes-Benz S-Klasse S 350 d Lang AMG Prestige Plus Automaat | Netto € 65.000,-- - Duration: 1:10.

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Toyota Yaris 1.4 D-4D-F BUSINESS PLUS NAV/A.CAMERA/AIRCO - Duration: 1:07.

For more infomation >> Toyota Yaris 1.4 D-4D-F BUSINESS PLUS NAV/A.CAMERA/AIRCO - Duration: 1:07.

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Why Isn't Cling Wrap as Good as It Used to Be? - Duration: 2:52.

[♪ INTRO]

Odds are, you probably have a roll of cling wrap tucked away in a kitchen drawer,

ready for wrapping up your leftovers.

For a lot of people, it's a kitchen staple.

But if you've been buying the stuff for years, you might've thought that it just

doesn't work as well as it used to.

And for once, you're not imagining it.

The gold standard for cling wrap used to be the Saran Wrap brand,

made by the company SC Johnson.

But around the early 2000s, the company actually changed their formula

to a version that was less sticky and generally less effective.

Thankfully, they at least had a good reason for it.

Saran Wrap was originally made out of a chemical called polyvinylidene chloride, or PVDC.

It was actually discovered by accident by a chemist at another company,

Dow Chemical, in 1933.

It formed as a sticky residue in beakers

that had been used to develop a chlorine-based dry-cleaning chemical.

And not that dry-cleaning isn't fascinating or anything, but

PVDC turned out to have some interesting properties of its own.

It's a special kind of chemical compound called a polymer, a molecule in which a

bunch of identical, smaller molecules are linked to form a long chain.

There are all kinds of these, but PVDC was especially useful

because it forms a nearly impenetrable barrier to odors,

making it ideal for wrapping and preserving food.

That's because it has a super-low permeability:

the rate at which it lets liquid or gases pass through it.

Scientists think this is probably thanks to the densely packed,

unbranched, stable structure of its molecular chains.

Dow first sold this super-effective Saran Wrap in 1953,

and SC Johnson bought the formula and the brand name in 1998.

But around that time, concerns started to surface about

chlorine-containing compounds like PVDC.

It turns out that when they're thrown away and burned in municipal trash incinerators,

they can release toxic chemicals.

When this came to light, SC Johnson made the responsible decision to

eliminate PVDC from all of its products by 2004.

After some research, they made a new cling wrap formula that used chlorine-free polyethylene.

It's another polymer that's okay,

but definitely not as good at trapping odors and keeping food fresh.

See, depending on the temperature, one square meter of a thin film of PVDC

will let about 1 to 5 grams of water vapor pass through it in a day.

But for low-density polyethylene, that ranges from 16 to 31 grams, a big difference.

And the difference in their oxygen transmission rates is even more impressive,

jumping from about 2 to 16 cubic centimeters per day for PVDC to almost 8,000 for polyethylene.

That's a lot of numbers, but the bottom line is that this new cling wrap just

doesn't have the same odor-trapping, freshness-preserving magic that it once did.

And maybe even worse, this polyethylene mix doesn't even seem to be quite as clingy.

But if the switch means putting less toxic pollutants into the atmosphere,

I think we can all probably make do.

Thanks for asking, and thanks to all of our patrons on Patreon

for keeping the questions coming.

If you'd like to submit a question or vote on which one we'll answer next,

you can go to patreon.com/scishow.

[♪ OUTRO]

For more infomation >> Why Isn't Cling Wrap as Good as It Used to Be? - Duration: 2:52.

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PowerApps Unfiied Client Top 20 Count Down - May 2018 - Duration: 8:11.

Hi my name's Scott Durow! One of the exciting things about the UCI is that

we're starting to see new features released much more regularly than they

used to be so because of this I thought I'd start a countdown of the top 20 of

our favourite features so without further ado I'm proud to present the

PowerApps Model Driven Apps Top 20 countdown. Up 2 at 20 it's App for

Outlook with the UCI in native iOS and android outlook app. By selecting the app

for dynamic 365 inside outlook you can track your emails and then see related

records and then even start to work on those records right from inside outlook.

Down 6 to 19 its outlook desktop with tracking contacts. From the user

interface with inside outlook you can select a contact and link it to an

account which will then create that contacts and dynamics

you could also untrack contacts which will then ask you if you want to delete

it from dynamics or no. You can also select multiple contacts and send an

email or an appointment. A new chart entry 18 is inline lookups with

forget-me-not. When selecting lookups you'll see your list of most recently

used records that match the lookup and you can select them without actually

performing a search. Another new entry at 17 by inline lookups with view selector

and expander. When you select a lookup you can start typing and it will

highlight the results in a list of matching records and then you can expand

and collapse the records to see more information. You can then change the view

to start filtering based on the criteria that you need.

Down 4 and 16 its UCI forms with related record tabs. On a form you'll see

a related tab that you can select a particular entity relationship and

it'll create a new tab for you that will stick around as you move between other

form tabs. Down 14 at 15 its UCI forms with tabs mean tabs. Yes

tabs actually now are tabs on your form rather than expanding and collapsing

sections. There's also this rather nifty related section that allows you to

open lots of records together and they'll appear as lots of tabs across

that related section. So you can navigate between them for reference purposes.

Another new entry at 14 is model-driven with app selector. When you start the

native app you'll be presented with apps that you have access to and then in the

navigation pane on that app you can select back and it'll take you back to

the app selector. Those apps can be role-based or may be job function based

based on your security role. Another new entry at 13 from App for Outlook and pin

that panel! Normally when you select in the Dynamics 365 app for outlook and

navigate to another email, the panel disappears, but when you pin that app you can

navigate between your emails and the panel will stay around without having to

reauthenticate. Down one at 12 it's model driven with no more downloading screen

Your users are gonna love you because they'll never see that finger again! Down

1at 11 is timeline control and what you missed and filtering. So when I

open up a form and I go to the timeline control it's gonna show me if I've

missed anything since last time I viewed the record and then I can open up the

filters and start to filter by the different statuses and types of

activities and then look at things by dates and also by activity type

Down one at ten interactive dashboards with visual filters. So we've had

dashboards in dynamics for a long time but now we've got these interactive

dashboards which much more like power BI dashboards where you can select

particular segments on the graphs and it'll filter your streams which you can

then add and remove filters as you need. So it really allows you to explore your

data without actually moving from the dashboard, and the great thing is that

these interactive dashboards even work on the mobile client and they're

optimized for touch so you can navigate between your charts and add and remove

filters as you need. Down one at 9 is business process flow and docked panel

stays put! Selecting the steps pops up a little window. If I then dock that panel

that panel will stay put as I navigate between the steps but also as I navigate

between other records. So I can then advance through the stages and when I

select that step on the mobile it also shows the similar panel which I can then

provide information on and navigate between the steps. A new entry 8 it's

command bars and global nav bar buttons. This allows me to add the advanced find

button until the UCI team get round to doing themselves. A non-mover at 7

its model driven and take me back to the place I was before. So now we've got a

back button on the UCI and pressing the back button does exactly as you

would think it would do - it takes you back to the previous record - awesome!

A non mover at 6 its UCI forms with label and section wrap. So as we reduce

the width of forms, first the sections wrap and then labels wrap above their

fields.It's the highest new entry at 5 and model-driven with multiple forms for

Apps. So when you have an app you can define exactly which forms you want to

be visible in that app for that entity so rather than having one monolithic

user interface with all the different forms - all the different views. Your app

can be self-contained and you can even have different quick creates. Up 1 at

4 it's UCI forms with no no there's no limit! No more restrictions on the

number of fields or sections you can have on the tablet or mobile form. Just

configure one form for all devices. Up one at three its UCI grids with

responsive rendering. Grids will show as cards where there isn't enough space to

show the full columns, and then those cards will be available for a touch

friendly index. Down one from the top spot it's number two model-driven apps

and record navigation panel. The navigation panel shows a list of records

from the grid that you just come from each record shows up to three columns

and also the entity image and then you can select it to navigate around rather

than using the up and down arrows that you used to get on the web client.

Furthermore if you navigate to a child record the navigation stays visible so

you can still navigate around that sub grid.

That means we have a brand new number 1!

UCI grids and in line command bars. So anywhere where we have a grid of records

we can always access the ellipses and shows the command bar and then we can

perform an action on that particular record and that command bar is

accessible from dashboards from inside form grids from a timeline. It allows us

to perform actionable insights directly on our records no matter where they are

So there we have it, the top 20. I can't wait to see what's on the top spot next

month. 'til then - Cheers!

you

For more infomation >> PowerApps Unfiied Client Top 20 Count Down - May 2018 - Duration: 8:11.

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VNaneP - I'M BACK feat. Fukase 【Original Song】 - Duration: 4:02.

For more infomation >> VNaneP - I'M BACK feat. Fukase 【Original Song】 - Duration: 4:02.

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Eddy Mitchell : Johnny lui manque terri­ble­ment mais il n'aurait pas dû déshé­ri­ter David et Laura - Duration: 4:02.

For more infomation >> Eddy Mitchell : Johnny lui manque terri­ble­ment mais il n'aurait pas dû déshé­ri­ter David et Laura - Duration: 4:02.

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Mariage du prince Harry : qui est Thomas Markle, le père de Meghan Markle ? - Duration: 5:28.

For more infomation >> Mariage du prince Harry : qui est Thomas Markle, le père de Meghan Markle ? - Duration: 5:28.

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Dacia Duster - Duration: 0:52.

For more infomation >> Dacia Duster - Duration: 0:52.

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Waffles in Dresses「Splatoon 2: Fail Fleet Battles 🦑 Ep20」 - Duration: 59:40.

For more infomation >> Waffles in Dresses「Splatoon 2: Fail Fleet Battles 🦑 Ep20」 - Duration: 59:40.

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Cette seule habitude suivie chaque matin, vous fait perdre du poids | S.Jill Vargas - Duration: 7:31.

For more infomation >> Cette seule habitude suivie chaque matin, vous fait perdre du poids | S.Jill Vargas - Duration: 7:31.

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BREAKING NEWS !!! Leaked Microsoft Xbox Accessibility Controller Revealed Ahead Of E3 2018 - Duration: 1:57.

Twitter user walking cat has this week leaked the

first images of a new Microsoft Xbox controller specifically designed for

accessibility as you can see from the image the new Xbox controller includes

two oversized a and B pads a d-pad and the usual Xbox button and navigation

controls the new Xbox accessibility controller is expected to be officially

unveiled during next month's III 2018 games conference the controller is

currently codenamed project Z and appears to have programmable a and B

pads together with a three light LED indicator that was first included on a

second-generation Xbox one elite controller leaked the accessibility

controller is also included with an Xbox headphone jack and USB port together

with a variety of other connections and inputs to enable the controller to be

used by other applications expect more details to be announced during

Microsoft's e3 2018 keynote which takes place next month on June 10th 2018 as

soon as we hear any more details regards pricing and availability we will keep

you up to speed as always

For more infomation >> BREAKING NEWS !!! Leaked Microsoft Xbox Accessibility Controller Revealed Ahead Of E3 2018 - Duration: 1:57.

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Hyundai Tucson - Duration: 0:42.

For more infomation >> Hyundai Tucson - Duration: 0:42.

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Hyundai Tucson - Duration: 1:05.

For more infomation >> Hyundai Tucson - Duration: 1:05.

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Hyundai Tucson - Duration: 0:49.

For more infomation >> Hyundai Tucson - Duration: 0:49.

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Hyundai Tucson - Duration: 0:49.

For more infomation >> Hyundai Tucson - Duration: 0:49.

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Hyundai Tucson - Duration: 1:05.

For more infomation >> Hyundai Tucson - Duration: 1:05.

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Hyundai Tucson - Duration: 1:05.

For more infomation >> Hyundai Tucson - Duration: 1:05.

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Hyundai Tucson - Duration: 0:43.

For more infomation >> Hyundai Tucson - Duration: 0:43.

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Hyundai Tucson - Duration: 0:54.

For more infomation >> Hyundai Tucson - Duration: 0:54.

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Spit It Out Challenge

For more infomation >> Spit It Out Challenge

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Toyota Yaris 1.4 D-4D-F BUSINESS PLUS NAV/A.CAMERA/AIRCO - Duration: 1:07.

For more infomation >> Toyota Yaris 1.4 D-4D-F BUSINESS PLUS NAV/A.CAMERA/AIRCO - Duration: 1:07.

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How to Find the Equation of a Tangent Line with Derivatives (NancyPi) - Duration: 18:44.

Hi guys! I'm Nancy..

and I'm going to show you how to find the equation of a tangent line using derivatives.

What is a tangent line? Well, it just means if you have a graph...

with some curve on it

the tangent line is the line

that touches your graph at one point exactly.

It's a linear line

that is tangent to your curve and sort of grazes it and touches at one point.

So tangent line problems can come in many forms

but thankfully you can use the same four steps in all of them

so let me show you some examples.

OK. Say you have a problem that says to find

the tangent line to Y equals X cubed plus 2X at a point

at the point: 1, 3. How do you start this problem? Well

it's always gonna be the same four steps in these tangent line problems.

The first step is to take the derivative of the equation that you're given.

This Y equals

is also F of X.

It's also a function.

You want to take the derivative of the equation you're given, so F prime of X is your first step.

F prime of X

and then you take the derivative of this expression.

The derivative of X cubed...

remember for the power rule, you bring the power down and then decrease that power by 1.

so for the first term, we have 3X squared

for the second term, the derivative of 2X is just 2. The X goes away.

You have 3X squared plus 2. So that's your derivative, your F prime of X.

The second step is always to take the X coordinate that you're given in the point...

and plug it in to F prime of X.

You can call that F prime of 1.

Since you're X coordinate is 1. So you take that number, and you're going to plug it in

to what you just found, the derivative. And this is just notation for that, for plugging in 1.

Anyway, when you plug in 1 for X, you have 3 times 1 squared plus 2...

which simplifies to 3 times 1 plus 2

which is just 5, so F prime of 1...

equals 5.

This is going to be your slope number that you'll use.

The third step is...

to find the Y coordinate of your point, if you're not already given it

so sometimes you're not given the Y.

In this problem, you're given the whole point, which could happen.

So you have Y equals 3, so you don't need to find Y in this case.

You can move on to the fourth step, the last step, is to plug in the numbers that you've found

into the point-slope formula for a line.

The point-slope formula...

in general looks like Y minus Y1 equals M times X minus X1.

M is just your slope

and that's going to be the F prime value that you found when you plugged in X

so your M in this problem is 5.

Which you found right here.

X1 and Y1 are the coordinates of the point that you found or that you were given.

So this here you can also call X1, Y1.

You have both of those numbers.

Now you want an equation for the tangent line.

That means that in your equation you need to leave an X variable and Y variable in it.

So it's OK to leave those there. In fact you want it.

You can go ahead and you can write your equation

by plugging in values for M, for X1, and for Y1.

So your X1 is the coordinate 1.

Your Y1 is the Y coordinate of the point.

The original point, which is 3.

So if you rewrite this, your equation is

Y - 3 equals the slope 5, times (X - 1).

Notice you're leaving X and Y in the equation

because you want it to be an equation for Y in terms of X.

So this... this is correct. This is a correct answer.

Sometimes it's considered simpler to move it around

and change it to be in slope intercept form

or Y = MX + B form.

So you can do that with some simple algebra

if you were to multiply, distribute out, the... 5X - 5, and rearrange the numbers

you could get into Y equals form. if you were to multiply, distribute out, the... 5X - 5, and rearrange the numbers

you could get into Y equals form.

Y = 5X - 5 + 3... which is just minus 2.

So this.. Y = 5X - 2 is your equation of the tangent line to this F of X at that point.

Alright, say you have F(X) = X / (X - 1)

and you have to find the equation of the tangent line at X = 2.

This looks a lot more complicated

but the truth is it's the same four steps

no matter how complicated your F(X), your equation gets. but the truth is it's the same four steps

no matter how complicated your F(X), your equation gets.

This could be ridiculous..

but as long as you know how to take F prime of X, the derivative, you can still

do all the same steps and get the equation of the linear tangent line.

So the first step is still, find F of X.

Find the derivative of your given equation.

You want F prime of X..

Now since your equation is X / (X - 1)

this is a fraction. This is a quotient.

so you'll have to use the quotient rule to take the derivative.

Which is a little more complicated than you might like..

but the steps are pretty straightforward.

Think back to doing the quotient rule..

It's the bottom of the function times the derivative of the top..

derivative of X is just 1..

..minus the top expression, X, as is..

times the derivative of the bottom, which is 1 from the X

and nothing from the -1, so it's just 1 there.

And then it's all over the bottom squared.

The lower function squared. (X - 1) squared.

OK. So this is the derivative, but you should simplify it

because things will cancel.

Try simplifying within the top first. Within the numerator.

This is X - 1 - X ... another X...

all over (X - 1) ^ 2.

Great news is that something cancels on top. This becomes simpler.

X - X cancels and you're just left with -1 on top.

So, the simplest way to write your derivative F prime of X is..

-1 / (X - 1)^2

Remember F prime just means the derivative.

Alright. Second step.

Again, plug in your X value, into the derivative F prime of X.

What you can call that is F prime of 2, because you're plugging in 2.

So the notation for that is..

F prime of 2 means you're putting 2 in place of every X in your derivative expression.

So in this case, that means -1 on top...

and (2 - 1)^2 on the bottom.

This simplifies to...

-1 over 1^2, which is just 1.

So your slope value...

your M is -1.

I'll make that clear.

OK. Third step. Find the original Y value if you don't already have it.. if you weren't given it.

You weren't a full point, you were only half, just the X coordinate.

So you have to find Y. How do you do that?

All you need to is take the original X, plug it in to your original equation, your original F...

and find Y, find the Y value.

So you can call that F of 2

That will give you your Y. F of 2

means you're plugging in 2 for X, so you have 2 / (2 - 1)...

which is 2 / 1, which is 2.

Alright, so that is your Y.

So if you had to write a full point for the original point...

it would be 2 for X and 2 for Y, or (2,2).

That's important, you're going to use both of those numbers next.

Because the last step is still to plug in your M, your Y, and your X...

all into the point-slope form for the equation of a line.

And that point-slope form looks like...

Y minus your Y coordinate, your Y1, which is 2...

equals M, your slope, which is -1...

times parentheses X, the X you want that in the equation. Otherwise it's not a full equation...

minus the X coordinate, or X1, which is also 2 in this problem.

Alright, so you know, this is technically correct, you can leave your answer in point-slope form.

Unless you have to rearrange it to get it into Y = MX + B form, but technically this is correct

so this is the equation for the tangent line to this graph at X = 2.

OK. One final problem.

I'm giving you one that has a trig function in it.

F of X equals (sec X)^2

There's also a power in here, so this might look kind of scary, maybe...

but just rely on what you know about derivatives, differentiating.

In this case you're going to have to use the Chain Rule..

..yay chain rule..

because there's a function inside of a power.

but even if this is a more complicated derivative

you're still going to do the same steps. The first step is still...

find F prime of X. Find the derivative.

F prime of X

Like I said, this is a Power Rule with another function inside, so...

use the Chain Rule because you don't just have X inside. You have some other X expression

inside a power, you have to use the Chain Rule.

First, you take the derivative of the power using the Power Rule.

So the 2 power comes down out front as a coefficient, 2.

You can still put parentheses. Sec X is still there...

this power 2 is reduced by 1, so the power is 1. We don't need to write that.

If we don't write it, it's assumed that the power is 1.

You're not done. You are not done, because it's not just X inside.

Since there's a sec X, you also need to multiply by the derivative of sec X..

the inside function.

You did the derivative of the outside function. Now you need to multiply by the derivative of the inside function.

What is the derivative of sec X?

Well you can get that from a derivative table

with the trig derivatives, common trig derivatives, or maybe you just know it.

The derivative of sec X is...

Sec X...

times Tan X

Sec X Tan X

This is your F prime of X.

Alright, second step.

Plug in the X value that you're given. You're given pi over 3 for your X value.

Plug it in to F prime.

So you have F prime of pi over 3.

It's a weird pi number for your X value..

but that's totally valid, especially for a trig function

to have a pi/3X value that you're plugging in.

so this would be 2 times sec(pi/3)...

times another sec(pi/3)...

tangent...

of pi/3.

Alright, this can be simplified.

This should come out to be just a number, a constant

so you don't want to leave it like this.

As for secant...

It's always easier to find cosine first and then take the reciprocal, flip it.

It's easier to evaluate secant if you first do cosine

because secant is 1 / cos, so we have 1 / cos(pi/3)...

times another 1 / cos(pi/3)...

then you can just leave tan(pi/3).

Unless you prefer to write sin over cos.

But leave it as tan(pi/3).

Now you need to use what you know about the unit circle...

which you may remember

cos(pi/3)... pi/3 is up here.

cos(pi/3) is the x coordinate of pi/3

which is one half.

So this becomes 2 times...

1 over (1/2)...

times 1 over (1/2)...

times tan(pi/3). The tangent of pi/3...

is root 3.

So it's times square root of 3.

These values - one half, one half, root 3 - you can also get them from your calculator

if you're allowed to use a calculator. Just make sure that you're in radian mode

before you plug in cos(pi/3).

This simplifies because you have 2...

1 over (1/2)

Dividing by a fraction is the same as multiplying by its reciprocal

so it's the same as multiplying by 2.

So this is 2, and this is 2.

So that's 4.

2... times 2. Four.

And then you have a root 3 left over.

So your final F prime of pi/3, slope, value is

8 root 3. You can combine the 2 times 4

And that right there is your M, slope, value.

Alright, that was step two.

Step three, remember, you probably already have figured this out..

step three is to find the Y value, original Y value

if you're not given it.

But here you were given the full point, so Y is 4.

Your Y1 in the point-slope form is 4.

You have your X1...

and you have your M, so now you're ready to plug into the point-slope form

as your final step.

And that is Y minus Y1, which is 4

equals M, which is 8 root 3, you can just write that.

You don't want to write the decimal version of that.

8 root 3 times X, you want X in your equation

minus X1, which is pi/3.

You can just write that, pi/3.

And this right here is a totally valid way of writing your final answer.

It's in point-slope form.

Rearrange it if you have to, but this is a valid answer for

the equation of the tangent line to this F of X, at that point.

So I hope this video helped you

figure out how to write the equation of a tangent line using derivatives.

Look.. anything that makes calculus easier is a good thing.

So if this video helped you..

please click 'like' or subscribe!

For more infomation >> How to Find the Equation of a Tangent Line with Derivatives (NancyPi) - Duration: 18:44.

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For more infomation >> Climate Change Cage Match: Seals vs. Polar Bears? | We the Internet TV - Duration: 2:34.

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