Veritasium
Veritasium & Team Record Gold Invade London
- Title
- Veritasium & Team Record Gold Invade London
- Date posted
- 14 years ago
- Description
- I'm going to London! And I'm leading a team of YouTubers. For the next few weeks we will all be doing videos themed around the Olympics so I'm tackling the science of sport and science in and around London.
The Team!
HOWRIDICULOUS: http://bit.ly/LtFzpW
APPCHAT: http://bit.ly/NxAMlX
ERIKAANEAR: http://bit.ly/MdyUzQ
MINUTEPHYSICS: http://bit.ly/Muh6CC
EFIT30: http://bit.ly/O4CMme
2VERITASIUM http://youtube.com/2veritasium
Music by Alankeys86 and Kevin McLeod (Incompetech.com)
For the London 2012 Summer Olympics creators from all over the world are taking over YouTube with the most awesome Olympics videos ever. Go to YouTube.com/CreatorHub to see all the amazing gold medal videos.
- Title
- Atomic Bonding Song
- Date posted
- 14 years ago
- Description
- Starring: Christie Wykes as Chlorine, Carbon, and Sodium
Director of Photography: Sean McCallum
Gravity (John Mayer Cover) http://www.youtube.com/watch?v=u7KpH9_I2Dw
I'm Atoms (Jason Mraz Cover) http://www.youtube.com/watch?v=DBjZz0iQrzI
Electricity (Jet Cover) http://www.youtube.com/watch?v=cY-kiddvAg0
Experiments A Cappella http://www.youtube.com/watch?v=lRbI_vPyOnc
- Title
- Free Higgs!
- Date posted
- 14 years ago
- Description
- To celebrate the announcement of the discovery of a particle consistent with the Higgs Boson at the LHC, I took to the streets with Vi Hart to give out free Higgs. Now giving out a subatomic particle, especially the Higgs, would have been incredibly difficult so instead we gave out hand-drawn cards of the Standard Model, our current best theory of all matter particles in the universe and their iteractions (now with Higgs!). We also offered a hug with an integer spin, usually 1 or 2 (and in rare cases 0). This is a way of showing others that you care about the Higgs Boson.
- Title
- The First Meeting of EDUtubers! ft. CGPGrey, Vsauce, Smarter Every Day, Numberphile +more
- Date posted
- 14 years ago
- Description
- Back in 2012, we all met for the first time at BrainSTEM - a conference of science YouTubers, instigated by Henry of MinutePhysics (Thank You Henry!!!) bringing together the most awesome STEM personalities from around the world. People like Vsauce, John Green, Vihart, Destin from Smarter Every Day, CGP Grey, Brady Haran of Numberphile et al. I had an awesome three days hanging out with all the cool people in this video and hopefully this is only the start of many fruitful collaborations to come. Thanks everyone!!!
Now this happens to be video 100 for me. It's not really about science, but I think it's pretty awesome because it features all of my YouTube heroes.
- Title
- Northern Lights From 100,000 ft!
- Date posted
- 14 years ago
- Description
- In April 2012, I was part of a team of scientists, teachers and students who travelled to Alaska to observe the Northern Lights or Aurora Borealis. Our mission was a unique one - to launch weather balloons up to 100,000 feet loaded with experiments, tracking devices and HD cameras. This is the result of our trip, produced for Catalyst on ABC1 http://www.abc.net.au/catalyst/
- Title
- Does a Falling Slinky Defy Gravity?
- Date posted
- 14 years ago
- Description
- This is how a slinky falls in slow motion - it appears to defy gravity but the centre of mass is accelerating at 9.8m/s^2 meaning the top is accelerating faster than that and the bottom is not falling at all until the entire slinky collapses.
Read a pre-print of the physics paper here: http://arxiv.org/abs/1208.4629
Music by Kevin McLeod http://incompetech.com
Songs: Industrial Music Box, Heavy Interlude, Pale Rider, Decisions.
Slow motion photography courtesy of Questacon http://questacon.edu.au
The original goal of Veritasium was to show the beauty of science and I think the first minute and a half of this is the closest I've come. This is the last in a series of six videos about slinkies.
- Title
- Transit of Venus! Sydney 2012 Contacts, Contracts and Parallax
- Date posted
- 14 years ago
- Description
- Smarter Every Day Collaboration video: http://youtu.be/riwc3UgPaHw
The Veritasium treatment of the final transit of Venus this century. The weather behaved for some key moments allowing me to observe Venus passing across the disk of the sun. The transit of Venus is steeped in historical significance. Observations of the transit in 1769 led to the first really accurate calculation of the Earth-Sun distance (or one astronomical unit AU). Since Cook was in Tahiti he then mapped the East coast of Australia and parts of New Zealand.
- Title
- Spinning Disk Trick Solution
- Date posted
- 14 years ago
- Description
- ZoggFromBetelgeuse's solution: http://www.youtube.com/watch?v=pwl-rBVbWAY
This is a preliminary solution to the spinning disk trick based on the commonly cited tippe top explanation. I have my doubts that it tells the whole story because the disk seems to tilt, so the argument about constant angular velocity is in doubt. I wonder if the weight of the disk plays a more important role in making it flip. Plus, I think the disk appears to roll without slipping while the lighter side is moving down. This violates one of the assumptions of the tippe top explanation. So why am I publishing this now? I feel bad it has been two weeks and I haven't posted the answer yet so let's consider this a starting point for a work in progress...
- Title
- How Does A Slinky Fall?
- Date posted
- 14 years ago
- Description
- Some months a go I filmed a slinky falling in slow motion. Now I have interviewed the public about what they expect to happen for ABC TV's Catalyst program and this is the result.
- Title
- Gyroscopic Precession
- Date posted
- 14 years ago
- Description
- NOTE: This video will appear in a playlist on Smarter Every Day hence the references to Veritasium. Destin does lots of cool science stuff - check out his channel if you haven't already http://www.youtube.com/destinws2
We have been collaborating on rotational motion, which is timely for some of the videos I've been doing lately. In this video I talk about gyroscopic precession - the "wobbling" of a spinning top around its axis.
This is caused by the torque due to the object's weight. The big idea is that the torque vector increases angular momentum in the direction of torque. So if there is no angular momentum initially, it will cause the system to swing in such a direction that it is rotating with new angular momentum in the direction of the torque. However, if there was angular momentum to begin with, the torque will change the direction of that angular momentum by causing precession.
- Title
- Spinning Disk Trick
- Date posted
- 14 years ago
- Description
- Objects hang heavy side down, but what happens when you spin an asymmetrically weighted disk - well the heavy part actually rises to the top. Why is this?
- Title
- Why Are Astronauts Weightless?
- Date posted
- 14 years ago
- Description
- http://www.abc.net.au/catalyst/team/default.htm
I have been working with Catalyst on ABC1 to bring some Veritasium to Australian TV. In this segment I ask why astronauts in the space station are weightless. The most common answer is because there is no gravity in space. But of course there is gravity in space, especially where the space station is located (only about 400km from Earth's surface). So astronauts still experience a gravitational pull - it's just that they and the space station are in free fall so they are accelerating together towards the Earth. The space station doesn't crash into the Earth because of its orbital velocity - it's going 28,000 km/h so as it falls, the Earth curves away from it.
- Title
- Where Does The Sun Get Its Energy?
- Date posted
- 14 years ago
- Description
- The sun has been producing light for about five billion years but where does all its energy come from? The most common idea is that the sun is burning gas - like a giant fireball in the sky. If this were true, the sun would have gone out long ago. So how is the sun actually fuelling itself? It is converting its own mass into energy. By combining protons (the nucleus of hydrogen) into helium, it squeezes some mass into energy - 4.3 billion kg per second. It is Einstein's famous E=mc^2 which gives us the quantitative relationship between mass and energy, where c is the speed of light.
- Title
- What Causes The Northern Lights?
- Date posted
- 14 years ago
- Description
- The aurora borealis or northern lights is one of the most spectacular natural displays on the planet. Theories about its origins have been debated for centuries and common misconceptions persist that the aurora is the sun's rays scattered off ice crystals in the high atmosphere. In truth, the light is created more than 100km above Earth's surface as high speed electrons and protons ejected from the sun in a solar flare or coronal mass ejection collide with air molecules in the upper atmosphere. The charged particles from the sun excite air molecules which then de-excite by emitting light. The display is most common around the north and south poles because the Earth's magnetic field deflects the solar wind from the equator to the poles. Here the magnetic field dips towards the Earth's surface, channeling the charged particles into the atmosphere.
Music is by Kevin MacLeod http://incompetech.com, the song is called Mirage
- Title
- Destination: Alaska
- Date posted
- 14 years ago
- Description
- More about the Alaska Trip: http://education.projectaether.org
Channel 10 Breakfast: http://www.tenbreakfast.com.au (6-9am weekdays in Australia)
March 26 segment on live TV talking about solar storms and my upcoming trip to the Great White North. As you watch this I will probably be on a plane high over the pacific.
PS a student recently told me that my hair to beard ratio is a bit off and watching this clip I tend to agree. However, it is still -20 C at night in Alaska so I'll need all the insulation I can get.
- Title
- Why Do You Make People Look Stupid?
- Date posted
- 14 years ago
- Description
- Raw interviews: http://www.youtube.com/watch?v=8dcw98B2Nzg
The question has arisen often enough that I thought I'd answer it. If you hold views that are consistent with the majority of the population, does that make you stupid? I don't think so. Science has uncovered a lot of counterintuitive things about the universe, so it's unsurprising that non-scientists hold beliefs inconsistent with science. But when we teach, we must take into account what the learners know, including their incorrect knowledge. That is the reason a lot of Veritasium videos start with the misconceptions.
Want to read my PhD? You can download the full text here: http://www.physics.usyd.edu.au/pdfs/research/super/PhD(Muller).pdf
- Title
- Where Do Trees Get Their Mass?
- Date posted
- 14 years ago
- Description
- Complete unedited interviews: http://www.youtube.com/watch?v=8dcw98B2Nzg
Trees can weigh hundreds or even thousands of tons, but where do they get this mass from? A few common answers are: the soil, water, and sunlight. But the truth is the vast majority of a dry tree's mass comes from the air - it originated as carbon dioxide
- Title
- Spinning Tube Trick Answer
- Date posted
- 14 years ago
- Description
- The solution to the question posed in the spinning tube trick video, that is - what would you see if looking at the spinning tube from below a glass table. The explanation of why only the X or O is visible will be the subject of the next video.
- Title
- Spool Trick
- Date posted
- 14 years ago
- Description
- Right: https://www.youtube.com/watch?v=AS9OXzSRBMQ
Left: http://www.youtube.com/watch?v=FWQ-HJ4oGKQ
It Depends: https://www.youtube.com/watch?v=R3GHiMOHEy8
What happens when nylon rope is wound around a spool and pulled horizontally to the right? Will the spool go to the right, to the left, or does it depend on how the rope is pulled?
- Title
- Spinning Tube Trick Explained
- Date posted
- 14 years ago
- Description
- When a tube spins with an X and an O labelled at either end, why do we see only one letter during the rotation?
- Title
- Spinning Tube Trick
- Date posted
- 14 years ago
- Description
- To see what this looks like from under a glass table, see http://www.youtube.com/watch?v=E9WUaBGH7_I
- Title
- Are You Lightest In The Morning?
- Date posted
- 14 years ago
- Description
- Are you heaviest at night before you go to bed and lightest in the morning? I tried to tease out the factors to figure out what really causes weight gain and loss during the day, and what causes daily weight fluctuations.
- Title
- World's Longest Straw
- Date posted
- 14 years ago
- Description
- What is the longest drinking straw that you can actually drink out of? Well in this video, we put the theory to the test. We started off with a one metre long straw made out of drinking straws taped together. We moved on to two pieces of plastic tubing, each 6 metres in length with different diameters. Then we tried a 10.5 metre tube over a cliff's edge. The maximum we achieved was about 7 metres though theoretically up to 10.3 metres is possible if a perfect vacuum is created.
- Title
- The Science of Curveballs
- Date posted
- 14 years ago
- Description
- For more info, please see http://www.physics.usyd.edu.au/~cross
In baseball and cricket the best pitchers and bowlers know how to make the ball move due to the effects of aerodynamics. If one side of the ball is rough, the ball swings towards that side because turbulent air 'clings' to that side of the ball and is deflected. Although baseballs and cricketballs appear symmetric, they can be made to fly through the air with a smooth or rough side by judicious angling of the seams combined with the axis of rotation.
- Title
- Koala Encounters
- Date posted
- 15 years ago
- Description
- I saw my first wild koalas while driving on the great ocean road. Generally their days are not very exciting. They spend most of their time sleeping and the rest of the time eating eucalyptus leaves. The eucalyptus leaves are tough to digest which explains their consumate napping. Plus they require bacteria in their gut to help them break down their food. This bacteria must be passed down from mother to child through the mother's poo. It's a tough start to life for koalas!
- Title
- What Is The Coastline Paradox?
- Date posted
- 15 years ago
- Description
- How long is the coastline of Australia? One estimate is that it's about 12,500 km long. However the CIA world factbook puts the figure at more than double this, at over 25,700 km. How can there exist such different estimates for the same length of coastline? Well this is called the coastline paradox. Your estimate of how long the coastline is depends on the length of your measuring stick - the shorter the measuring stick the more detail you can capture and therefore the longer the coastline will be.
- Title
- Candle Trick
- Date posted
- 15 years ago
- Description
- How to light a candle without touching a flame to the wick. A common misconception is that a candle burns by burning the wick. What is actually burning is wax vapour which is drawn up through the wick. When you blow a candle out, wax vapour continues to rise off the candle so you can light this vapour which burns back down to the wick, relighting the candle.
- Title
- How To Make Graphene
- Date posted
- 15 years ago
- Description
- My entry to the techNyou Science Ambassadors competition, visit www.facebook.com/talkingtechnology and www.youtube.com/technyouvids to find out more about these guys.
- Title
- What Causes The Phases Of The Moon?
- Date posted
- 15 years ago
- Description
- What causes the phases of the moon? The common incorrect answer is the shadow of the Earth. The phases of the moon are actually just a result of our perception of the moon's half-illuminated surface. When the moon does pass through Earth's shadow the result is a lunar eclipse. This can be spectacular as the moon turns a deep shade of red.
Images courtesy of NASAimages.org and Geoff Wyatt, Senior Astronomy Educator Powerhouse Museum
- Title
- A Human Being Is A Part Of The Whole
- Date posted
- 15 years ago
- Description
- A quote by Einstein: A human being is a part of the whole, called by us "Universe", a part limited in time and space. He experiences himself, his thoughts and feelings as something separated from the rest — a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest to us. Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security.
- Title
- What Is The Magnus Force?
- Date posted
- 15 years ago
- Description
- Whenever an object spins through the air it experiences a 'Magnus Force' due to friction between the air and the object's surface. This force was originally identified while studying the trajectories of cannon balls (though earlier observations of this effect exist). The Magnus force is essential in most ball sports including golf, cricket, tennis, and baseball.
At the end the ball demonstrations were conducted with a 100 mm diam polystyrene ball and the launcher was made by bending a long, thin, aluminum rod and bolting the ends to a block of wood as a handle.
Music was provided by Kevin McLeod (incompetech.com) Scissors and a stock clip from FCP.
- Title
- Atomic Rant
- Date posted
- 15 years ago
- Description
- How should we depict an atom? Like a solar system with electrons orbiting the nucleus on hula hoop orbits? That idea is so last century! Bosi takes us into the quantum world, where an electron's position and velocity aren't well defined - all we can calculate are the probabilities e.g. of finding an electron at different points in space. When we do that, we find electrons do not neccessarily occupy circles or spheres in space. Rather their probability densities make all sorts of interesting shapes from the dumbell to the peanut with the donut around it.
- Title
- Can You Go the Speed of Light?
- Date posted
- 15 years ago
- Description
- Einstein's classic thought experiment involves sitting on a train travelling at the speed of light. If you hold a mirror in front of your face, will you see your reflection in a mirror? How could light from your face reach the mirror if the mirror is travelling away from you? But it would be a pretty spooky train if you couldn't see your reflection so Einstein felt this solution wasn't realistic. On the other hand if you could see your reflection, it would mean light was travelling at the speed of light inside the train. But that meant the same light observed from outside the train would be going twice the speed of light. This again seems inconsistent. So Einstein resolved that you must see your reflection but that light must travel at the same speed inside and outside the train. The only way this is possible is if space and time are perceived differently by observers inside and outside the train.
- Title
- Physics Nobel Prize 2011 - Brian Schmidt
- Date posted
- 15 years ago
- Description
- The Nobel Prize for physics in 2011 was awarded to Brian Schmidt, Adam Riess, and Saul Perlmutter for discovering that the universe is expanding at an accelerating rate. This finding was completely unexpected because it was thought that gravity should slow the expansion of the cosmos. The best current explanation of why the universe is accelerating is that there is some energy tied to empty space which pushes matter apart. This 'Dark Energy' makes up 73% of the universe but is very difficult to detect. Images courtesy of NASA/NASAimages.org and Maritza A. Lara-Lopez
- Title
- Nobel Prize Winner Brian Schmidt - Physics 2011
- Date posted
- 15 years ago
- Description
- The Nobel Prize for physics in 2011 was awarded to Brian Schmidt, Adam Riess, and Saul Perlmutter for discovering that the universe is expanding at an accelerating rate. This finding was completely unexpected because it was thought that gravity should slow the expansion of the cosmos. The best current explanation of why the universe is accelerating is that there is some energy tied to empty space which pushes matter apart. This 'Dark Energy' makes up 73% of the universe but is very difficult to detect. Hopefully a better understanding of it will lead to a unification of our theories of gravitation and quantum mechanics.
Images courtesy of NASA - NASAimages.org
- Title
- Supersized Slow-Mo Slinky Drop
- Date posted
- 15 years ago
- Description
- What happens when a super long slinky is dropped?
- Title
- Make Plasma With Grapes In The Microwave!
- Date posted
- 15 years ago
- Description
- When a grape is cut nearly in half and placed in a microwave, plasma is produced. Please use caution if attempting this experiment: don't leave the microwave on for too long, make sure the area is well ventilated, and stand back. Remember the contents will be very hot afterwards.
- Title
- Slinky Drop
- Date posted
- 15 years ago
- Description
- What happens when a slinky that has been extended under its own weight is released? How does it fall to the ground? Answer link: http://www.youtube.com/watch?v=eCMmmEEyOO0
- Title
- Slinky Drop Answer
- Date posted
- 15 years ago
- Description
- Want more awesome HD slow-mo? http://www.youtube.com/watch?v=uiyMuHuCFo4
Slinky not long enough? Click here: http://www.youtube.com/watch?v=JsytnJ_pSf8
How does a slinky fall when extended by its own weight and then released? We discover the surprising answer using a slow motion camera that records 300 frames per second. Answer link: http://www.youtube.com/watch?v=oKb2tCtpvNU
For a great explanation, check out Rhett Allain's analysis here: http://www.wired.com/wiredscience/2011/09/modeling-a-falling-slinky/
- Title
- Slinky Drop Extended
- Date posted
- 15 years ago
- Description
- The answer to the question - what happens to a tennis ball tied to the bottom of a slinky after the top of the slinky is let go?
For a great explanation, check out Rhett Allain's analysis here: http://www.wired.com/wiredscience/2011/09/modeling-a-falling-slinky/
- Title
- States of Matter
- Date posted
- 15 years ago
- Description
- Everyone is familiar with liquid water, ice and water vapour, but what are the differences between these three states of matter? Solids, liquids and vapours of the same substance differ in the motion of the molecules and the distance between them.
Animations courtesy of VisChem (Trade Mark), Copyright 1995, Roy Tasker. Thanks for all your help!
- Title
- Imploding Drum
- Date posted
- 15 years ago
- Description
- The atmosphere applies a pressure of about 100 000 N to every square metre on Earth's surface. We take this pressure for granted because we have the same amount of pressure pushing out. But what happens when the pressure of the atmosphere is applied to an object with no outward pressure? It implodes. In spectacular fashion.
- Title
- What Colour Is Most Attractive?
- Date posted
- 15 years ago
- Description
- Scientific research has shown that heterosexual males and females find members of the opposite sex more attractive when they wear the colour red. This is a subconscious preference that seems to have some evolutionary basis. We attempted to replicate these findings in Sydney but our methods were much less controlled and the results achieved were not statistically significant.
- Title
- Chain Drop Answer 2
- Date posted
- 15 years ago
- Description
- Which weight hits the ground first - the free weight or the weight attached to the chain?
- Title
- Chain Drop Experiment
- Date posted
- 15 years ago
- Description
- On a mobile device? Click here: http://www.youtube.com/watch?v=X-QFAB0gEtE for the answer
Two 1.5kg masses are released simultaneously from the top of a 10m high wall. One is attached to a chain while the other is free. Which one will hit the ground first?
- Title
- Impress Her With Nanodiamonds
- Date posted
- 15 years ago
- Description
- Scientists have recently discovered nanodiamonds in the flames of ordinary candles. They are produced at a rate of about 1.5 million per second. Unfortunately they are also burned up at this rate and released into the atmosphere as carbon dioxide. Still this finding may prove useful in the ongoing search for economical ways to produce diamonds.
- Title
- What Is Water Made Of?
- Date posted
- 15 years ago
- Description
- It's the most abundant liquid on the planet and by weight we are about 60% water. But do we know what it is made of?
- Title
- What Is Chemistry?
- Date posted
- 15 years ago
- Description
- 2011 is the international year of Chemistry. But what do Australians know about it?
- Title
- Ice Cutting Experiment
- Date posted
- 15 years ago
- Description
- On mobile, click here for the answer: http://www.youtube.com/watch?v=qQCVnjGUv24
When ice is put under pressure, its melting point decreases. When that pressure is removed it goes back to being solid. This process is known as 'regelation'. In this experiment regelation of ice is attempted with copper wire and fishing line of the same diameter. Which will pass through the ice first?
- Title
- Ice Cutting Experiment
- Date posted
- 15 years ago
- Description
- What passes through a block of ice more quickly, copper wire or fishing line?
