Hitting Earth with a Grain of Sand Going 99.9% the Speed of Light

020621 Like and subscribe. This is an archive, check the link in the end if you are owner. In this video I show you what would happen if the earth were to be hit by a grain of sand going 99.9% the speed of light. I talk about the physics of it and then I try bigger objects hitting earth at near light speeds.

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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on my channel.
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