And what he can do right now?
Posted 96 days and 19 hours ago
I don't really understand the ground vibration...?
More description please.
Posted 96 days and 16 hours ago
It's a seismograph, guys. It writes on the strip of paper that moves along. Theoretically, it would write ground vibrations, but this one probably can't. It writes.
i love this invention
Posted 96 days and 11 hours ago
Please log in or register to add a comment