Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g The universe is HUGE. But, there is only so much of the universe we can ACTUALLY see, and if we wanted to measure that FINITE space, how would we do it? A
Problem 1: Two ladders are criss-crossed against walls of height 3 and 5. At what height do they intersect? Problem 2: I take 3 hours to complete a job, and you take 5 hours to do the same job. How long does it take if we work together? This video demonstrates that both problems have
Our Pi Playlist (more videos): http://bit.ly/PiPlaylist The State of Indiana nearly passed a law which would have made Pi equal 3.2 – strange but true. More links & stuff in full description below ↓↓↓ More Pi videos from Numberphile: http://bit.ly/W4oDN1 This video features Dr James Grime – https://twitter.com/jamesgrime The video about squaring circles: https://www.youtube.com/watch?v=CMP9a2J4Bqw A
Security of users’ passwords should be at the forefront of every web developer’s mind. Tom takes us through the insecure ways in which some websites deal with passwords. Note: At circa 8mins, the animation does not show how the ‘salt’ is also stored in the database alongside the username. Hashing Algorithms and Security: http://youtu.be/b4b8ktEV4Bg Security
Thanks to littlebits.com for sponsoring this video – use promo code MinutePhysics for $20 off A HUGE thanks to Wren Weichman (@wrenthereaper) for helping with the 3D bike animation, Michael Aranda for drone photography, Pavel for dowsing and Melissa for helping crash bikes. Bike references mainly from: http://bicycle.tudelft.nl/schwab/Bicycle/ And thanks to the following Patreon supporters:
You’ve probably heard the term Dark Matter, but what is it, and how do we know it exists? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/
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We have just seen the first image of a black hole, the supermassive black hole in the galaxy M87 with a mass 6.5 billion times that of our sun. But what is that image really showing us? This is an awesome paper on the topic by J.P. Luminet: Image of a spherical black hole with
Click this to share on facebook: http://on.fb.me/1stBreath You went from breathing liquid to air at birth. Why did you not die? Answer? Your heart’s plumbing SIGNIFICANTLY changed with your first breath. AWESOME huh? Have you ever heard of someone “with a hole in their heart”. The Foramen Ovale doesn’t seal completely causing improper flow. Here’s
The Hubble Deep Field, explained by the man who made it happen. Subscribe to our channel! http://goo.gl/0bsAjO If you hold a pin at arm’s length up in the air, the head of the pin covers approximately the amount of sky that appears in the Hubble Deep Field. The iconic 1995 image is crowded, not because
I know, I know, it’s a clickbait title. But I stand by it, because the water is so deceptive, and so pretty, and there’s a path that leads straight down to it and that jump looks very, very possible… The 12th century legend is the “Boy of Egremont”, immortalised in poetry by the famous William
The heavily requested video on the wirecard scandal. How can $2 billion just go missing? This story raises many questions about the regulatory bodies we all trust to keep the business financial system in line. — About ColdFusion — ColdFusion is an Australian based online media company independently run by Dagogo Altraide since 2009. Topics
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Quick Questions explains how some bees can transform flower nectar into the liquid gold that you use to sweeten your tea. Hosted by: Hank Green ———- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over
Subscribe – it’s FREE! – http://goo.gl/EpIDGd And please support us on Patreon – https://goo.gl/ZVgLQZ Thanks to ScienceAlert for support – http://www.sciencealert.com Why do ice cubes shrink, ice cream get frosty, and vegetables dry out in the freezer? FREEZER BURN! MinuteEarth is on facebook – http://facebook.com/minuteearth And twitter – http://twitter.com/MinuteEarth MinuteEarth provides an energetic and entertaining
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What would happen to you if a black hole the size of a coin suddenly appeared in your pocket? Lets find out! Check out www.Quarksandcoffee.com for more stuff like this video! Original reddit askscience post: http://bit.ly/1fLEHi6 OUR CHANNELS ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ German Channel: https://kgs.link/youtubeDE Spanish Channel: https://kgs.link/youtubeES HOW CAN YOU SUPPORT US? ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ This is how we
Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-prometheus-iseult-gillespie Before the creation of humanity, the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus, whose name means foresight, persuaded his brother Epimetheus to
Rose Lounsbury shares how to move towards a minimalist lifestyle and how it has improved her life. Rose Lounsbury is a minimalism coach, speaker, and author of the Amazon bestseller Less: Minimalism for Real. After blogging about her personal journey toward a minimalist lifestyle, Rose, a former middle school teacher, was inspired to help others
Adam Savage makes things and builds experiments, and he uses costumes to add humor, color and clarity to the stories he tells. Tracing his lifelong love of costumes — from a childhood space helmet made of an ice cream tub to a No-Face costume he wore to Comic-Con — Savage explores the world of cosplay
What if Einstein is WRONG? New videos every week: https://bigth.ink Join Big Think Edge for exclusive video lessons from top thinkers and doers: https://bigth.ink/Edge ———————————————————————————- Dr. Kaku addresses the question “What if Einstein’s theory of relativity is wrong?” ———————————————————————————- MICHIO KAKU: Dr. Michio Kaku is the co-founder of string field theory, and is one of
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David Graeber on the Value of Work. Does the world really need neuroadvertisers, PR researchers and branding consultants? Renowned academic and coiner of the ‘we are the 99%’ slogan, David Graeber is a passionate advocate for meaningful work. After famously condemning the 21st century phenomenon of ‘bullsh*t jobs’, in this short animation he investigates the
PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE ↓ More info below ↓ Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetime We know that gravity must cause clocks to run slow on the basis of logical consistency. And we know that gravity
What is the height of the red bar? This puzzle was posted on Math StackExchange by a Math PhD candidate, so I did not feel bad when I was unable to solve it! (Though I suspect some people will even find it “easy.”) Math StackExchange (see solution by Eric Duminil). It was posted by a