Tip:
Highlight text to annotate it
X
this is a very unusual experiment in which small crystals of salt are used to balance
things. take an ordinary egg. try to stand it on its head. no matter how hard you try,
the egg will topple over. try balancing on its narrow edge, it will again fall. but now
you take a few crystals of salt and place them on a table. just a few crystals. now
keep the egg correct on the salt crystal and press. don't give up, press just a little
harder. you will be surprised that the egg stands erect. the crystals of salt have wedged
themselves below the egg like a tripod and now the egg stands. you can see the small
crystals below. now make the egg stand on its narrow edge in a similar manner. its great
fun, its almost like magic. now take a metal block. try balancing it on one of its edge.
no matter how hard you try, it will topple over. once again take a few grains of salt,
just a few. now keep the edge on salt crystals, rock it to find its CG and press it. don't
give up. you will have to try couple of times and you will be surprised that the whole block
of metal tilts on its edge. now keep a few grains of salt on the table. take a box with
square base with some liquid in it. try rocking the box so as to find the CG, .... press it
and wow! box with water is able to stand erect, tilted on a few grains of salt. this is absolutely
amazing. finally try balancing a battery which is more difficult.