Chance Gray
182 followers -
There is no "I" in organzaton.
There is no "I" in organzaton.

182 followers
Chance's posts
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This had me crying like a girl.﻿
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Yay! Anti gravity!﻿
I came across this very interesting gif about a week ago, here at G+, and as usual I wanted to give it an explanation as to what's happening here.

This gif is actually part of a video taken in extremely slow motion, so in reality the beads on this chain are moving pretty fast. The gif exemplifies a phenomena known as the "self-siphoning beads" or also known as "Newton's beads". What people normally see here is a chain of beads levitating itself and falling out of the beaker, when that's not entirely the explanation.

The beads only start to fall when someone tries to pull one end of the chain quickly out of the beaker and over the edge, towards the ground. What this motion does is that it makes the beads fall faster as time goes on, due to the pull of gravity on the falling end of the chain. Falling end of the chain is longer than the moving part of the chain inside the beaker, so it is also heavier-making gravity pull on it harder than the shorter chain. The reason to why the beads don't just stop falling after the initial pull out of the beaker is due to momentum.

Once the beads begin to fall and are increasing in speed as they fall, this builds so much momentum that more of the beads inside the beaker tend to follow the up and down motion of the preceding beads that are falling or already have fallen. This also explains the loop that you see being created here. Without an infinite amount of force, an instantaneous change in direction of the beads-from going up to suddenly going down-is not possible, so what follows is the creation of a loop.

This loop is the result of the necessary time and spaces needed by the beads to change their speed and direction, along with maintaining and increasing their momentum. So when all of these forces act together, you'd wind up seeing a bead chain levitating itself out of a container and falling to the ground.

The video explaining this phenomena, along with the demonstration that's shown in the gif: Amazing bead chain experiment in slow motion - Slo Mo #20 - Earth Unplugged

Original video of Steve Mould, the person doing the experiment: Self siphoning beads

Video of this concept and an explanation: Understanding the chain fountain﻿
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Majestic﻿
A little reminder of just how much of the Universe there is to explore: http://youtu.be/17jymDn0W6U﻿
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Nams, this totally makes me think of you﻿
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Angel "Diana" Archer﻿
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#RorschachDoodle I see...Two houses in the distance at night viewed from a field full of watermelons.﻿
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Brand New NASA Astronaut Candidates!
Josh Cassada, Victor Glover, Tyler “Nick” Hague, Christina Hammock, Nicole Mann, Anne McClain, Jessica Meir and Andrew Morgan.

Other than being thrilled for their selection — the ascans were chosen from among more than 6,000 applicants, the second largest turn out in NASA's history — the eight new candidates said they were really excited at the prospect of contributing to humanity's exploration efforts.