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Cold War… warming planet?
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A few years after the collapse of the Soviet Union, a top-secret, first-of-its-kind US spy satellite program was declassified, leading to the unexpected story of how former enemies became scientific allies, and technology invented for Cold War espionage was repurposed to study and combat the newest and greatest threat to human civilization: Climate Change.
Thank you to the following for help in researching this video:
Michael McElroy
D. James Baker
The Office of Vice President Al Gore
0:00 Peeking behind the Iron Curtain
1:52 Spies in space
2:53 A time machine… but for Earth
3:41 Early days of the Space Race
5:37 Code name: CORONA
8:37 No more Iron Curtain… now what?
10:48 Spies… but for the Earth
13:20 New data & unlikely allies
16:31 Teamwork makes the dream work
17:46 Support us on Patreon!
Note: The thumbnail for this episode includes a picture of Joe Hanson created with a text-to-image generative AI tool
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This episode of Be Smart is licensed exclusively to YouTube.
Chemistry raised to the power of AWESOME! That's what Hank is talking about today with Electrochemistry. Contained within, Hank discusses electrochemical reactions, half-reactions, how batteries work, galvanic cells, voltage, standard reduction potential, cell potential, electrolysis, electroplating, and the things that go into making it possible for you to watch this episode of Crash Course Chemistry!
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
--
Table of Contents
Electro-Chemical Reactions 0:13
Half Reactions 1:42
How Batteries Work 1:47
Galvanic Cells 3:18
Calculating Voltage 4:12
Standard Reduction Potential 4:42
Standard Cell Potential 6:03
Electrolysis 7:24
Electroplating 7:02
--
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Honestly, “spreadsheets” are kind of the vegetables of the business world -- the very idea of them makes some people queasy. But that’s ok! They can be intimidating, but they’re not impossible to understand. Today we’re going to learn to love ‘em, because basic accounting can make or break a business. If we lose track of expenses or overestimate a revenue stream, we might end up questioning where all the money has gone.
Software Advice: https://blog.hubspot.com/sales..../small-business-acco
***
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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Eric Prestemon, Sam Buck, Mark Brouwer, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
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Only a couple of decades after the end of the First World War--which was supposed to be the War that Ended All Wars--another, bigger, farther-flung, more destructive, and deadlier war began. Today, you'll learn about how the war in Europe progressed, from the Molotov-Ribbentrop pact and the invasion of Poland, to the Western and Eastern fronts, to VE Day and the atom bombs used in Japan.
Sources
-Hunt, Lynn et al. Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martin’s, 2019.
-Kotkin, Stephen. Stalin: Waiting for Hitler, 1929-1941. New York: Penguin, 2017.
-Mazower, Mark. Hitler’s Empire: How the Nazis Ruled Europe. New York: Penguin, 2008.
-Overy, Richard. Russia’s War: A History of the Soviet Effort, 1941-1945. New York: Penguin, 1998.
-Smith, Bonnie G. Europe in the Contemporary World, 1900 to the Present, 2nd ed. London: Bloomsbury, 2020.
-Snyder, Timothy. Bloodlands: Hitler between Hitler and Stalin. New York: Basic Books, 2010.
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Eric Prestemon, Sam Buck, Mark Brouwer, William McGraw, Siobhan Sabino, Jason Saslow, Jennifer Killen, Jon & Jennifer Smith, David Noe, Jonathan Zbikowski, Shawn Arnold, Trevin Beattie, Matthew Curls, Rachel Bright, Khaled El Shalakany, Efrain R. Pedroza, Ian Dundore, Kenneth F Penttinen, Eric Koslow, Timothy J Kwist, Indika Siriwardena, Caleb Weeks, Haixiang N/A Liu, Nathan Taylor, Avi Yashchin, Andrei Krishkevich, Sam Ferguson, Brian Thomas Gossett, SR Foxley, Tom Trval, Justin Zingsheim, Brandon, Westmoreland, dorsey, Jessica Wode, Nathan Catchings, Yasenia Cruz, Jirat
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#crashcourse #europeanhistory #worldwarii
#Comparison_Of_Fractions #Ramesh_Sir
Which is greatest Fraction ? Comparison of Fractions I Easy Tricks to compare Fractions I Ramesh Sir
Hi Everyone !
In this video I have explained how to compare fraction by using simple tricks. I have taken different types of fraction o compare which were asked in previous competitive exams. These tricks are so useful to all competitive exams like ssc, ssc gd, rrb, rrb mts, banks, etc and also scholarship tests like nmms and ntse. So watch the video till the end and also share to your friends. Thanks for watching..
Also watch the following videos as well...
Decimal Simplifications
https://youtu.be/DA33AC9ST5Q
Which is Greatest ?
https://youtu.be/G4DrGVKmvNg
Amazing Simplification Trick
https://youtu.be/C5EmtxhEHMA
Percentage Tricks Part-1
https://youtu.be/1xGSzT1ByWI
Percentage Tricks Part-2
https://youtu.be/Jn_Hstr6RaE
Percentage Part - 4
https://youtu.be/025MiZoq5wQ
Percentage Part - 5
https://youtu.be/dPXnfnziBJ0
HCF Part - 1
https://youtu.be/UdbLS9KeH38
HCF Part - 2
https://youtu.be/hyCgL72fxVk
HCF Part - 3
Problems on LCM (Part - 1)
https://youtu.be/PVSivIIaZSc
Problems on LCM (Prt - 2)
https://youtu.be/uLrMtvNW6fE
Simplification Tricks (Sum of Series)
https://youtu.be/QuYC-_Z-edE
Fractions (All Concepts) Part - 1
https://youtu.be/qHwAumaS_0g
Simplification of Surds Part - 2
https://youtu.be/5PXjk-NIFic
LCM Short Trick
https://youtu.be/7x0K94bj9Co
Amazing Division Trick
https://youtu.be/Q7rgGUfQ-BQ
Division Trick - 1
https://youtu.be/D6r3XcEztp0
Division Trick - 2
https://youtu.be/keam5D9bykU
Balancing Mathematical Equations
https://youtu.be/T6eb-cFhS8g
How to success in NMMS/NTSE in 15 days
https://youtu.be/cI7L6xbBU-I
BODMAS Rule (Simplification Tricks Part-1)
https://youtu.be/pLNMdbZFEOY
Counting Cubes Trick
https://youtu.be/PA9X0bnOyfs
Number Series Part - 2
https://youtu.be/wrg4kzGkuD8
Picture Series,
https://youtu.be/BEVjpkmU_tI
NMMS(SAT) - Mensuration
https://youtu.be/_Fqd2G6PHT8
NMMS(SAT) - Exponents & Powers
https://youtu.be/pHXXY311qFY
NMMS 2019 Maths Bits Answers with Explanation
https://youtu.be/zh2OPw8OvRI
Simplification Tricks Part - 1
https://youtu.be/KNT7EpBuw6o
Simplification Tricks Part - 2
https://youtu.be/-LuNboS71kk
Simplification Tricks Part - 3
https://youtu.be/B0rU1j2Njug
How to Remember Opposite Alphabets
https://youtu.be/Q6jrXAPfUuM
Classification (Odd man out based on numbers)
https://youtu.be/jjJJ-9eFnns
Completing Figures Trick
https://youtu.be/JJp9pJdCd3I
Square root infinite series trick
https://youtu.be/QLb2R0RGlR4
Coding - Decoding Part - 1
https://youtu.be/u_yjyFThn-I
Alphabet Analogy(Letter Analogy)
https://youtu.be/KejyZEqoHRU
Number Analogy
https://youtu.be/m93nt--I6-M
Word Analogy
https://youtu.be/41lGfVou_Wo
Missing Numbers Tricks
https://youtu.be/VQjUAG5gxdg
Number Series Tricks
https://youtu.be/0pCFnmM1jB0
Repeated Letter Series
https://youtu.be/bFJp7RKgyVU
Counting Figures(Triangles)
https://youtu.be/4JmeG4KeO_g
Counting figures Part-2
https://youtu.be/910Wp20iwaQ
Counting Figures Part-3
https://youtu.be/Fg9WjXZi1gE
Calendar Trick Part- 1
https://youtu.be/n1xqo6VtvH0
Time & Work Part - 1
https://youtu.be/HSByvHGp8tY
Time & Work Part - 2
https://youtu.be/g3kaopXpx-o
Mirror & Water Images
https://youtu.be/Jk77cPzVxz4
Average Trick
https://youtu.be/JcxCzbDujRE
Clock Trick
https://youtu.be/cVn4O2M6dWE
Calendar Tricks Part - 2
https://youtu.be/QRzWipsIYF8
Logical Venn Diagrams
https://youtu.be/t9jtX1qpL-k
Dot Situation
https://youtu.be/n2tymdmp-nc
Profit and Loss
https://youtu.be/ToeUKWkZmlc
Odd man out Part-1(Based on Numbers)
https://youtu.be/dDkRnAjT9oE
Odd man out Part-2(Based on Word)
Opposite Alphabets
https://youtu.be/Q6jrXAPfUuM
Alphabet Numbers
https://youtu.be/RBrMc_khTxI
Odd Man Out (Alphabets)
https://youtu.be/5kGnL5uyK20
Don’t forget to suggest our channel to someone who needs it :- https://www.youtube.com/channe....l/UCWKWBq9tXVs_BRNev
-----Thank You for Watching-----
“Ramesh Sir"
Basic plan reading.
This lesson lloks at some basic calculations involved - how to work out the position of objects such as a window.
To donate to the tecmath channel:https://paypal.me/tecmath
To support tecmath on Patreon: https://www.patreon.com/tecmath
To buy tecmath mechandise: https://teespring.com/stores/tecmath-store
To multiply large numbers quickly we use the method of cross multiplication - a type of method used in vedic math. By following the method in this series of videos you will quickly and easily learn how to multiply any size quickly - not with lots of different tricks like the other methods, but by using one method only.
This video looks at how to multiply large numbers, four digits and over. Become a math genius - a master at numbers! Impress your teachers and get perfect grades at Math in school be working faster than your teacher can!
To donate to the tecmath channel:https://paypal.me/tecmath
To support tecmath on Patreon: https://www.patreon.com/tecmath
To buy tecmath mechandise: https://teespring.com/stores/tecmath-store
Convert from miles to kilometres instantly, and the back again! Or...convert from kilometres to miles. This method is a fast way to do the multiplication required!
To support free math by tecmath on Patreon (thankyou): https://www.patreon.com/tecmath
To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU
To support tecmath on Patreon: https://www.patreon.com/tecmath
To buy tecmath mechandise: https://teespring.com/stores/tecmath-store
#convertingmeasurements
#convertingunits
#metric
In this lesson, you will learn how to find the mean, find the median, find mode, and calculate range of a data set.
▶ Free Practice Worksheet: https://www.mashupmath.com/blo....g/mean-median-mode-r
Tags: mean median mode range, central tendency, find the mean, find the median, find mode, calculate range, data set
#MashupMath
★ Want more FREE weekly math videos? Subscribe Now: http://bit.ly/1OVJnyh
★★ Why Math? Download YOUR Free eBook and sign-up for our FREE weekly newsletter: http://www.mashupmath.com/resources/
On this lesson, you will learn how to use the arc length formula and the sector area formula to solve geometry math problems. Lesson Guide: https://bit.ly/2Rj7Whq
This lesson answers the questions: What is arc length formula? What is sector area formula? How do I find arc length? How do I find sector area? What is a central angle? How do I find an arc?
This video lesson includes a free lesson guide and equation of a circle worksheet with an answer key. Click the links below to get yours:
★Get Your Arc Length and Sector Area Lesson Guide: https://bit.ly/2Rj7Whq
★Get Your Free Arc Length and Sector Area Worksheet: https://bit.ly/2Rj7Whq
★ Want more FREE weekly math videos? Subscribe Now: http://bit.ly/1OVJnyh
★★ Why Math? Download YOUR Free eBook and sign-up for our FREE weekly newsletter: http://www.mashupmath.com/resources/
Kære venner
Dette værksted er godt til at øve de tocifrede tal med eleverne.
Mange af eleverne kan have svært ved at huske, hvad tallene hedder og hvad de består af.
Derfor er det en stor fordel at bygge tallene på forskellige måder
Du kan hente mine materialer lige her: https://anettekmatematik.com/tocifrede_tal/
Følg mig gerne her:
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
https://www.youtube.com/channe....l/UCR8PqEuBE7OlORn2y
https://anettekmatematik.com/
#anettekmatematik #værkstedsundervisning #lærmatematik
This tutorial shows how to find the X intercept and Y intercept of a line. Once the X and Y intercepts of a line are found, they are used to sketch the line on the X Y coordinate system.
Join this channel to get access to perks:
https://www.youtube.com/channe....l/UCn2SbZWi4yTkmPUj5
:)
Kære venner
Jeg glæder mig vildt meget til igen i næste skoleår at holde en lang række workshops om værkstedsundervisning.
Det gør mig så glad at møde ligesindede kolleger og sammen fordybe os i sjove, kreative og udviklende værksteder.
Alle mine workshop er hele dage med fuld forplejning, så vi har god tid til fordybelse, afprøvning af mine værksteder og spørgsmål.
Del gerne budskabet og tag en kollega under armen.
Tilmelding:
Mellemtrin Aarhus: https://cfu.via.dk/kurser-og-k....onferencer/75215-vae
Indskoling Aarhus: https://cfu.via.dk/kurser-og-k....onferencer/75214-vae
Indskoling Odense + Vejle: https://www.ucl.dk/efteruddann....elser-og-kurser/kurs
Mellemtrin Odense + Vejle: https://www.ucl.dk/efteruddann....elser-og-kurser/kurs
Indskoling Aalborg: https://www.ucn.dk/kurser-og-v....idereuddannelser/kur
Børnehaveklasse Nyborg: https://www.boernehaveklasseforeningen.dk/event
Glæder mig til at se jer
kh Anette
Kh Anette
Følg mig gerne her:
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
https://www.youtube.com/channe....l/UCR8PqEuBE7OlORn2y
https://anettekmatematik.com/
#værkstedsundervisning
#anettek
#workshop
This is my journey to find all of the fundamental constants of nature which took some surprising turns. Check out Brilliant who sponsored part of this video: https://brilliant.org/dos
When you learn physics, you very quickly encounter the physical constants of nature, things like the gravitational constant, the speed of light in a vacuum, planck's constant, the elementary charge things like that. These are numbers which we believe are the same everywhere in the universe, for all time. They are baked into our laws of physics and are very special, because if they were even a few percent different, then the Universe wouldn’t exist and neither would we. They are also fundamental because we can’t derive them from any underlying theory, we just have to take them as being true.
So I wanted to go on a quest to find all of the fundamental physical constants and collect them all together so you can see them all in one place, because that’s the kind of thing I do on this channel. So this video is the story of me doing that. But it took some fascinating twists and turns along the way, and the final set was definitely not what I was expecting, because it doesn’t actually include the ones we are familiar with, the ones I just mentioned: speed of light, gravitational constant, planck’s constant. Watch to find out why.
--- Links to source material ----
How many fundamental constants are there? By John Baez
https://math.ucr.edu/home/baez/constants.html
Note that his final set is a little different to mine which is explained in his article. I chose my set to be the easiest to understand.
Here are the actual numbers for all these dimensionless constants from David Black
https://math.ucr.edu/home/baez/constants_table.pdf
How fundamental are the fundamental constants?
https://arxiv.org/pdf/1412.2040.pdf
Dimensionless constants and cosmological measurements
https://arxiv.org/pdf/1304.0577.pdf
How do neutrinos get their mass?
https://www.symmetrymagazine.org/article/how-do-neutrinos-get-their-mass#:~:text=Trillions%20of%20neutrinos%20pass%20harmlessly,with%20any%20matter%20at%20all.&text=Neutrinos%20are%20a%20type%20of,interactions%20with%20the%20Higgs%20boson
Helpful wikipedia pages
https://en.wikipedia.org/wiki/Physical_constant
https://en.wikipedia.org/wiki/....Dimensionless_physic
https://en.wikipedia.org/wiki/....Fine-structure_const
#physics #quantum #DomainOfScience
If you’d like to support my free educational content: https://www.patreon.com/domainofscience
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DFTBA Store: https://store.dftba.com/collec....tions/domain-of-scie
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I have also made posters available for educational use which you can find here: https://www.flickr.com/photos/95869671@N08/
-- Some Awesome People ---
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Join the gang and help support me produce free and high quality science content:
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--- My Science Books ----
I also write science books for kids called Professor Astro Cat. You can see them all here:
http://profastrocat.com
--- Follow me around the internet ---
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--- Credits ---
Music, art, and everything else by Dominic Walliman
WEBSITE: http://www.teachertube.com A brief tutorial using Geometers Sketchpad to graph a parabola construct a point on the parabola trace the coordinates of the point and copy and paste the graph into another program like micrsoft Word.
