Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
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Check out http://youarenotsosmart.com/ for more on cognitive biases
Books by David McRaney: http://amzn.to/1pQqmQh and http://amzn.to/1qrGRpM

Did blowing on NES cartridges actually do anything? http://mentalfloss.com/article..../12589/did-blowing-n
http://gaming.stackexchange.co....m/questions/15044/wh
http://www.digitpress.com/foru....m/showthread.php?117

Mario speedrun video via akyeren: https://www.youtube.com/watch?v=Boq3ghiTKHA

The Vegetable Lamb of Tartary: http://www.wired.com/2014/04/f....antastically-wrong-v

Mice from dirty laundry and other spontaneous generation: http://en.wikipedia.org/wiki/S....pontaneous_generatio

Here's another video testing the effectiveness of blowing into NES cartridges: https://www.youtube.com/watch?v=VNi4A2KGOfw

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editor and motion graphics
John Knudsen - Gaffer

Music: "Ouroboros" by Kevin MacLeod

Video game music:
Rolemusic: Ants
Rolemusic: Bacterial Love
Rolemusic: Ladybug Castle
Rolemusic: Another Beek Beep Beer Please

Stock images via Shutterstock

Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

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Can trees really save us from climate change? For eons, nature has relied on photosynthesis as a big way to keep carbon dioxide levels from getting out of control. But as we have put more carbon into the air, we’ve also cut down many of the forests we need to suck that carbon up. So big tree-planting initiatives like #TeamTrees to the rescue, right? Actually, we need to think bigger. Here’s three ways trees really can help us solve climate change, from a guy who wants to plant a TRILLION trees, to how we might save the forests we’ve got, to scientists hacking biology to make trees even better.

References: https://sites.google.com/view/....3waystreescansavethe

Aspect Science: Team Trees Explained https://youtu.be/SLHCA-hHx4Y

Special thanks to Felix Finkbeiner
https://www.plant-for-the-planet.org/en/home

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Head to Physics Girl for electromagnetic explosions! https://youtu.be/AXOa66-k9MA

Musical tesla coils are awesome. I went to visit Arc Attack, the legendary musical tesla coil band, to find out how they work (and to stand in between them!) I brought my friend Physics Girl along too

Step inside the Tesla coils in this 360 video: https://youtu.be/2SNcbNlbyVo

Special thanks to:
ArcAttack
http://arcattack.com/

-----------------
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Follow me on Twitter: @DrJoeHanson
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Music via APM
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Stock footage from Videoblocks (unless otherwise noted) http://www.videoblocks.com

Why is the weatherperson wrong?
Support us on Patreon https://www.patreon.com/itsokaytobesmart
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What is El Niño? Why can’t we predict the weather? Just a few slight changes in global climate patterns can drastically shift the weather. Thanks to chaos theory, even our smartest meteorologists can’t predict weather correctly.

Cool demonstration of the Butterfly Effect: http://www.exploratorium.edu/c....omplexity/java/loren

2:20 El Niño graph by Jan Null: http://ggweather.com/enso/oni.htm


Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
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http://twitter.com/jtotheizzoe
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It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
Follow me on Twitter: @DrJoeHanson
Email me: itsokaytobesmart AT gmail DOT com
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For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen Inc.
Kate Eads - Producer
Andrew Matthews - Editing/Motion Graphics/Animation
Katie Graham - Camera
John Knudsen - Gaffer

Theme music: “Ouroboros” by Kevin MacLeod

Other music via APM
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It’s one of the most annoying sensations our bodies can feel, but does anything feel better than when you scratch an itch? Ok, maybe *some* things. But itching and scratching are up there. How does this weird sensation work? And what is itching for?

References: http://bit.ly/2IiIqWn

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
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Comic book heroes ain't got nothin' on evolution.

Click here to SUBSCRIBE and get more great science, it's FREE! -- http://bit.ly/iotbs_sub

Evolution has come up with some pretty amazing ways to get things done when it comes to animals, plants and microbes. From radiation-resistant bacteria (like Dr. Manhattan) to geckos who climb glass using atomic adhesion (like Spider-Man) to a shrimp that can shoot a bubble the temperature of the sun (like Aquaman), nature is pretty super!

Watch more YouTube Geek Week videos at http://youtube.com/geekweek

Clips from this episode: http://bit.ly/15aWwcF

Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)

Special thanks to Dragon's Lair Comics & Fantasy in Austin, TX

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Why is the universe organized the way it is? And why is it so empty? From planets and stars to superclusters and galactic filaments, the universe’s largest structures formed because of its smallest. In this special collaboration with PHD Comics, we’ll learn how the earliest, quantumest blips seeded the structure of everything everywhere.

Special thanks to Jorge Cham and Daniel Whiteson!
http://phdcomics.com/
@PHDcomics
@DanielWhiteson

-----------
READ MORE:
Check out “We Have No Idea”: http://amzn.to/2yFfWyr

We used visualizations from:
NASA Goddard
https://svs.gsfc.nasa.gov

The Aquarius Project
http://wwwmpa.mpa-garching.mpg.de/aquarius/

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Matt Caplan, Ph.D.
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Additional animation: Jorge Cham
Producer: Stephanie Noone and Amanda Fox

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It's definitely higher than "11"
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What is the loudest possible sound? What about the quietest thing we can hear? And what do decibels measure, anyway? In this video you'll learn what makes sound

The loudest sound on Earth (the we know of anyway), great story by Aatish Bhatia: http://nautil.us/blog/the-soun....d-so-loud-that-it-ci

Video of the Papua New Guinea volcano eruption from YouTuber bacobjee: https://www.youtube.com/watch?v=BUREX8aFbMs

Calculation of the shock wave from teleportation: http://www.quora.com/Teleporta....tion/If-you-were-to-

The sometimes-painful effects of different sound pressure levels: http://www.makeitlouder.com/De....cibel%20Level%20Char

How loud are rocket launches? http://testtube.com/dnews/how-....loud-are-space-shutt

NASA's sound suppression water system: https://www.youtube.com/watch?v=9LehY5avJUM

Can a sound be loud enough to kill you? http://www.straightdope.com/co....lumns/read/2298/can-

-----------------
It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D
Follow me on Twitter/Instagram: @DrJoeHanson @okaytobesmart
Email me: itsokaytobesmart AT gmail DOT com
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For more awesome science, check out: http://www.itsokaytobesmart.com
Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios

Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Jen Piper/Arts+Labor - Editing/Motion Graphics/Animation
Katie Graham - Director of Photography
John Knudsen - Gaffer

Theme music:
"Ouroboros" by Kevin MacLeod

Other music via APM
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French subtitles by Alessandro Dal Cero

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Otters are more than just cute, adorable little fuzzballs, they are one of the greatest conservation success stories of all time. Sea otters are a keystone species, meaning that an entire ecosystem depends on their presence. After they were nearly hunted to extinction for their dense fur, sea urchins (the otters' favorite food) nearly destroyed the Pacific kelp forests, a habitat that hundreds of species rely on for food and shelter.

Thanks to the hard work of conservation scientists at places like the Monterey Bay Aquarium, sea otter populations are on their way back. Here's the story of one orphaned sea otter pup's journey back to the wild

(Whale illustrations by Nobu Tamura/CC-BY-3.0)

Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
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Joe Hanson - Creator/Host/Writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Producer
Andrew Matthews - Editing/Motion Graphics/Animation
Katie Graham - Camera
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Theme music: "Ouroboros" by Kevin MacLeod

Other music via APM
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You may not be an expert, but perhaps you feel pretty confident that you could ride a motorcycle, or give someone a decent haircut - if you absolutely had to - right? Not so much, according to the psychological phenomenon known as the Dunning-Kruger Effect. Turns out we’re all at risk of being overconfident about something. Watch Joe put this theory to the test as he tries to land a 737 (in a simulator, of course). Oh, did we mention Joe's not a pilot?

References: https://sites.google.com/view/....be-smart-dunning-kru

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Check out the largest gathering of mammals on Earth!

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate

Subscribe to It's Okay To Be Smart ►► http://bit.ly/iotbs_sub

Visit Bat Conservation International to learn more about these amazing species and what we can do to protect them: http://batcon.org/

Thanks to Dr. Sharon Swartz and Dr Kenny Breuer from Brown University for use of their wind tunnel footage: http://www.brown.edu/Departments/EEB/EML/

Mexican free-tailed bats hunt at higher altitudes than any other bat: http://bit.ly/10e5Zpe

Doppler radar shows bats intercepting the moth invasion: http://www.youtube.com/watch?v=mvENxTke4Sc

Dr. Aaron Corcoran's research on moths jamming bat echolocation (plus VIDEOS!) http://www.sonarjamming.com/

Rainforest regrowth and seed dispersal by bats: http://bit.ly/1nzOBpN

Some bats are able to create lift more efficiently than birds: http://www.livescience.com/124....5-bats-efficient-fly

White nose syndrome: http://en.wikipedia.org/wiki/White_nose_syndrome

Produced for PBS Digital Studios

Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editing/Motion Graphics
John Knudsen - Gaffer
Dalton Allen - Post-production Intern

Theme music:
"Ouroboros" by Kevin MacLeod

Stock images via Shutterstock

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Is overpopulation real? Is Earth filling up with too many humans? How many people can Earth hold, anyway? As our species approaches 8 billion, human overpopulation is a major concern for many people. How can we reduce poverty and our impact on the environment? Do we need a forced one-child policy or something? Maybe not, because when we look at the science and history, populations seem to control themselves. This week we look at all these questions and more.

READ MORE:

https://ourworldindata.org

https://www.sciencemag.org/sit....e/special/population

http://science.sciencemag.org/content/346/6206/234

https://www.scientificamerican.....com/article/are-mal

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson, Ph.D.
Creative Director: David Schulte
Editor/animator: Karl Boettcher
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
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We’re celebrating our 2 millionth subscriber with a special Q&A episode!

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson, Ph.D.
Creative Director: David Schulte
Editor/animator: Karl Boettcher and Derek Borsheim
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com

🍎 Enjoy our growing library of math videos at https://www.numberock.com 🍎

Thank you for watching Numberock's Fractions Song Compilation.

Welcome to Fractions: A Mini Course on the Basics with Mr. J! Need help with fractions? You're in the right place!

Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with the basics of fractions. Mr. J will cover what fractions are, equal parts, unit fractions, fractions of shapes, unit fractions, and fraction on number lines.

✅ Looking for separate videos on these topics? Check out this playlist: https://www.youtube.com/playli....st?list=PLiT3pCvK_cf

✅ Chapters and Timestamps
00:00 = What are Fractions?
09:26 = Identifying Equal Parts
15:15 = Naming Equal Parts
20:59 = Unit Fractions
30:00 = Fractions of Shapes
34:23 = Fractions of a Group
38:42 = Identifying Fractions on a Number Line
45:06 = Drawing Fractions on a Number Line

*About* : Math with Mr. J is a math education channel that offers instructional math videos to anyone looking for a little extra help with math!

*Email* : math5.mrj@gmail.com

*Music* : https://www.bensound.com/royalty-free-music

Thank you to following people for the graphics in this video:

- MarkOblivious for the pizza graphics (https://pixabay.com/vectors/pi....zza-table-pepperoni-

- lachkegeetanjali for the cookie graphics (https://pixabay.com/vectors/co....okie-christmas-sweet

- aleksandra85foto for the doughnut graphics (https://pixabay.com/users/alek....sandra85foto-463403/

Hopefully this video is what you're looking for when it comes to fractions.

Have a great rest of your day and thanks again for watching! ✌️✌️✌️

🎯 Méthode simple pour additionner des fractions
✅ addition, soustraction, numérateur, dénominateur, méthode, vocabulaire

FRACTIONS:
1.) 5 + 1/2 =

2.) 1/3 + 1/3 =

3.) 4 1/2 + 1/2 =

4.) 5/6 + 2/3 =

5.) 3/4 + 1 1/3 =

6.) 4 – 1/2 =

7.) 2/3 – 1/3 =

8.) 4 1/2 – 1/2 =

9.) 5/6 – 2/3 =

10.) 3/4 – 1 1/3 =

11.) 1/2 × 1/2 =

12.) 3 × 2/7 =

13.) 2/7 × 7/8 =

14.) 1 1/3 × 2 =

15.) 2 1/2 × 1 3/7 =

16.) 1/2 ÷ 1/2 =

17.) 2 1/3 ÷ 3 =

18.) 4/5 ÷ 2 1/2 =

19.) 5 ÷ 1/5 =

20.) 3/4 ÷ 3/8 =

CSE Style:
1.) Which of the following is greater than 1?
a. 1/2 ÷ 1/4
b. 1/2 – 1/4
c. 1/4 ÷ 1/2
d. 1/4 + 1/2
e. 1/4 × 1/2

2.) 60 is 3/7 of what number?
a. 14
b. 20
c. 42
d. 140
e. 180

3.) If 3/4 of a number is 36, what is one-third of the number?
a. 8
b. 12
c. 16
d. 20
e. 24

RATIO and PROPORTION:
1.) 12 : 4 = 6 : X

2.) X : 20 = 3 : 15

3.) 16 : 8 = X : 1

4.) m/6 = 3/18

5.) 2/12 = n/18


part1:
https://youtu.be/DuVEguCq_KQ

Mr. Duey releases first song off "Class Dis-Missed"

This was the first video Mr. Duey did. Currently it has over 2,000,000 views on TeacherTube.com

Mr. Duey's CD Class Dis-Missed has this video plus 17 educational rap songs for elementary and middle school students. Songs include; Verbs, Atoms, Cells, Core Democratic Values, Fractions, Integers and more!

Also, now order Class Dis-Missed 2 and get an additional 18 educational rap songs!

Go to http://[a]www.MrDuey.com[/a] to order your CD today!




www.MrDuey.com

How can you turn #decimals into #fractions? Let me show you how.

Follow me on:
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FACEBOOK: https://www.facebook.com/AteLyqaMaravilla
TWITTER: https://www.twitter.com/lyqamaravilla

You can click here to see the other videos I made:
https://www.youtube.com/watch?v=GU5TL5pNww0&list=PLdtpIaZj6fcLO2Qb7vEFiGW9yu5hhbhre

You can go to my website for free lessons and worksheets:
http://teamlyqa.com/

Join Team Lyqa by liking this page:
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Happy learning!

✔️ Class: 7th
✔️ Subject: Math
✔️ Chapter: Fractions & Decimals
✔️ Topic Name: Introduction , Ex 2.1

✔️📚👉 Next Video: https://youtu.be/CpbEvRH0nGU
✔️📚👉 Check Chapter 2 Playlists:- https://www.youtube.com/watch?v=0vuHnTWs-VY&list=PL5aQFo5utHdeLxfJ6G_gAJpJ999RHha11&index=1
✔️📚👉 Get Notes Here: https://www.evidyarthi.in/cbse..../class7/maths7/maths
✔️📚👉 Get MCQ's Here: https://www.evidyarthi.in/cbse..../class7/maths7/mcq-q
✔️📚👉 Get eBooks PDF: https://www.evidyarthi.in/cbse..../class7/maths7/cbse-
✔️📚👉 Get Sample Paper's : https://www.evidyarthi.in/cbse..../class7/maths7/sampl
✔️📚👉 Get Previous Year Paper : https://www.evidyarthi.in/cbse..../class7/maths7/maths
✔️📚👉 Android App : https://play.google.com/store/....apps/details?id=mo.i
=============================================================

0:00 Introduction

#class7maths #fractionsanddecimals #ncertmaths

Welcome to MathZip, your trusted guide for mastering IGCSE Algebra. In this video, we simplify algebraic fractions step by step—covering Q1 (a–e) with clear explanations and exam-style logic.

Previous Part:
https://www.youtube.com/playli....st?list=PL60Rdj6sJyB

🎯 Topics Covered:

Laws of indices

Rational expression simplification

Factoring and cancellation

IGCSE-style problem solving

📌 Perfect for learners preparing for IGCSE Mathematics (0580) or Additional Mathematics (0606).


🔔 Subscribe to MathZip for more topic-wise breakdowns and printable resources. 📥 Follow on Facebook for daily updates and practice sets.

#MathZip #IGCSEAlgebra #AlgebraicFractions #SimplifyExpressions #IGCSEMath #RationalExpressions #MathForEveryone #BangladeshMath #GlobalMath #AlgebraMadeEasy

Fractions Class 3 | Class 3 Fraction Worksheet |Class 3rd Fraction |Class 3 Maths Worksheet |Grade 3

In this video we will see fractions worksheets
class 3 fraction worksheet
fractions class 3
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भिन्न के सवाल | Fractions | Maths kaise sikhen | Basic Maths Series by Explain 4U | bhinn ke sawal

In This Video, We Learn about how to start learning fractions in maths step by step. it is a very easy and simple subject. we learn 5 tips to improve mathematics. I hope you like this video. This tip helps you to solve maths problems in an easy way. I also uploaded full maths topic videos. You must watch this.

More Videos Links

1) Maths kaise strong kare
https://youtu.be/NA0vpBYT7bY

2) समीकरण के कठिन सवाल सीखे | Equations
https://youtu.be/somp7RZcSuU

3) भिन्न का जोड़ घटाव गुणा भाग | Fractions
https://youtu.be/ad7Q0XmHy0c

4) Lcm और Hcf निकालना सीखे |
https://youtu.be/gyLXf01rqzc

5) गुणनखंड करना सीखे | Factorisation
https://youtu.be/HLTAKlCXMZo

6) प्रतिशत निकालना सीखे | Percentage
https://youtu.be/jnzdpaKyxqg

7) रूट का जोड़ घटाव गुणा और भाग |
https://youtu.be/gpfaEdQtnpg

8) संख्याओं को काटना सीखें | How to Divide Numbers | Divisibilty Rule
https://youtu.be/NpE3MNhHP08

9) दशमलव का भाग करना सीखे | Decimal Division Trick
https://youtu.be/ebUP64oLvtI

10) BODMAS Rule | बोडमास का नियम सीखे
https://youtu.be/PCy77upPiw0

More Playlists Links:-

1) समीकरण ( Equations ): https://www.youtube.com/playli....st?list=PLUfMjsqKXxW

2) भिन्न के सवाल ( Fractions ): https://www.youtube.com/playli....st?list=PLUfMjsqKXxW

3) Best Videos for Class 10 Maths: https://www.youtube.com/playli....st?list=PLUfMjsqKXxW

Agar aap ko Video achcha laga to like kre and hamare channel explain 4u ko subscribe kre hum aaise hi mathematics content apne chennel par late rahte he.

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About This Video :-

1) bhinn ka jod ghatav guna bhag
2) fractions in hindi
3) fractions class 7 and 8
4) bhinn ka guna bhag
5) bhinn ka jod ghatana guna bhag ek sath
6) addition subtraction multiplication division of fractions
7) भिन्न का जोड़ घटाव गुणा भाग
8) bodmas rule in maths
9) how to learn maths
10) maths kaise sikhen

#explain4u #fractions #bodmasrule #bodmas #bodmas_rule #bhinnkesawal #basicmaths #bhinnkabhag #bhinnkagunabhag #bhinn_ka_ghatana #bhinnkajor
#mathskaisesikhe #maths

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In the 5th grade CBSE (Central Board of Secondary Education) curriculum, students typically learn about fractions as part of their mathematics syllabus.
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