Let's Make Robots!

bottle hourglass

this is a hourglass made by 2 bottles.i cut the top of the bottle and glued.a simple project it shows 1 minute.

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its so simple

Yes it’s simple,... but is it really a robot?
(Maybe you should have put it under something else?)

yes,but i just made a account on this so at that time i dont know too much about the uploading

i made it when i am 10.now i am 17