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This is moment when lightning rods on a building released an upward discharge to attract incoming lightning 📹 Marcelo Saba and Diego Rhamon
65i 已轉發
A water hose can be attached to a speaker so that it vibrates at a certain frequency, say 27 Hz. You can see this effect through a 24 fps camera & if you change the vibration frequency you see a different pattern [edgarciancio885: buff.ly/42890Hj]
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