Boris Iyutin
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Beautiful abstract art?

Rather this is a graphical representation of the frequency of four digit PIN codes. On the x-axes we have the first two PIN digits from 00.. to 99.., on the y-axes we have the last two digits from ..00 to ..99. Popular PIN codes include the yellow diagonal, PIN codes of the form XYXY, and even more bright XXXX. The vertical yellow line are PIN codes marking a year, mostly between the years 1930-2010. The yellow blob on the lower left are US formatted calendar days from 01/01 to 12/31 (you can even see how many days each month has). Also singleton yellow dots can be explained.

Anyway, it is beautiful, in my opinion.﻿
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View of some Asteroid Neighbors until 2017.
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The Lagrange points mark positions where the combined gravitational pull of the two large masses provides precisely the centripetal force required to orbit with them. A satellite at L1 would have the same angular velocity of the earth with respect to the sun and hence it would maintain the same position with respect to the sun as seen from the earth. Without the earth's gravitational influence, a satellite of the sun, at the distance of L1, would have to move at a higher angular velocity than that of the earth
http://en.wikipedia.org/wiki/Lagrangian_points

http://files.sharenator.com/GIF_of_asteroids_caught_in_the_Lagrangian_points_of_Jupiter_and_the_Sun_xpost_from_rphysics-s500x500-410229-580a.gif﻿
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A powder snow avalanche

be careful

goo.gl/hiR0QU﻿
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Lenz’s law & why do magnets fall more slowly through a copper tube?
When you move a magnet past a metal plate or through a copper tube you generate a current.
The current it’s self generates magnetic fields which oppose the magnetic field generated by the magnet impeding it’s movement
The key is in explaining that the law runs both ways; current generates magnetic fields, and magnetic fields generate current.