It’s really incredible! When I watch this clip, I can’t believe this little robot was built in the late 1770s. This small barefoot boy called “the writer” that was crammed 6,000 custom made components to create a automaton programmable writing machine. It was designed and built by Swiss-born watchmaker Pierre Jaquet-Droz with help from his son Henri-Louis, and Jean-Frédéric Leschot. If you like it, see more information on BBC Four’s documentary Mechanical Marvels: Clockwork Dreams, hosted by professor Simon Schaffer.
Youtube user Brusspup post this video that named “Amazing Resonance Experiment!” on Youtube. First, sand is poured on a black metal plate which is attached to a tone generator. Then the speaker is cycled through various frequencies make the sand emerge geometric patterns.
If you just watched G.I. Joe, you must remember the robotic firefly, now German technology firm Festo release their latest robotic marvel - BioniCopter. I’m not sure which field they wanna use, but at least I don’t wanna see them in the nature.
It’s not magic, it’s science. Through a 24hz sine wave, the falling water becomes a stream of water similar some wave looks. I searched lots of comments online, someone said actually human’s eye can’t catch these effect, but camera has frame rate. If you like it, you can see more on Brusspup’s page in You Tube.