Kommentare
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hes hot and i think he is high as well
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its 2017
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you lost me at grav. ....
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But does it djent??
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cant this fag just die?
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Ok nice but what if the Speer would be turned inside out causing the gravitational pull towards the centre of gravity mirroring our perspective and narrowing the virtues? Would the Sphere become smaller in mass cause I found the equation 3x 0yu to the 100 th power would make the reflections on our perspective change therefore covering less mass. Or not
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yeah yeah it's round and everything but can it djent?
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It´s amazing how you conect all the ideas to explain one concept and the concept can protect a exact measure in a physical world. It´s like the most pure conecction beetween the language and the maths.
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Well the wikipedia article still states that the kilogram is defined by the Big K, so I guess that project didn't come to fruition.
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Do a video on the mythbusters episode where they shot a ball out of a cannon at 60mph while the cannon was on the back of a car going 60mph. When it was shot the ball fell straight down to the ground. Do a video explaining the physics of that.
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I still don't get why we don't just go back to having a kilogram be defined as a litre of water at 4°C.
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That chick is hot
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Watt balance please @veritasium
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This is how science nerds flirt...
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Who's watching in 2017
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let's call what inside
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is that a fushigi
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There's a homophobic joke comeing up
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What if someone broke in and switched 'em around? xD
The world's roundest object helps solve the longest running problem in measurement -- how to define the kilogram. Support Veritasium on Patreon: http://bit.ly/VePatreon A kilogram isn't what it used to be. Literally. The original name for it was the 'grave', proposed in 1793 but it fell victim to the French Revolution like its creator, Lavoisier. So begins the tale of the most unusual SI unit. The kilogram is the only base unit with a prefix in its name, and the only one still defined by a physical artifact, the international prototype kilogram or IPK. But the problem with this definition has long been apparent. The IPK doesn't seem to maintain its mass compared to 40 similar cylinders minted at the same time. The goal is therefore to eliminate the kilogram's dependence on a physical object. Two main approaches are being considered to achieve this end: the Avogadro Project and the Watt Balance. The Avogadro project aims to redefine Avogadro's constant (currently defined by the kilogram -- the number of atoms in 12 g of carbon-12) and reverse the relationship so that the kilogram is precisely specified by Avogadro's constant. This method required creating the most perfect sphere on Earth. It is made out of a single crystal of silicon 28 atoms. By carefully measuring the diameter, the volume can be precisely specified. Since the atom spacing of silicon is well known, the number of atoms in a sphere can be accurately calculated. This allows for a very precise determination of Avogadro's constant. Special thanks to Katie Green, Dr. David Farrant, the CSIRO, and the National Measurment Institute for their help. Thanks also to Nessy Hill for filming and reviewing earlier drafts of this video. There is debate as to whether this is truly the roundest object ever created. The Gravity Probe-B rotors are also spherical with very low tolerances such that they may in fact be rounder. Music by Kevin McLeod (incompetech.com) Decision, Danse Macabre, Scissors