3 ms·
This reminds me of the Lego seismometer: https://mindsetsonline.co.uk/shop/lego-seismometer-kit/ https://mindsetsonline.co.uk/shop/lego-seismometer-kit/
by robochat 5y ago
This reminds me of the Lego seismometer:
https://mindsetsonline.co.uk/shop/lego-seismometer-kit/ https://mindsetsonline.co.uk/shop/lego-seismometer-kit/