Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Edited from to 1/4th normal speed. I didn't quite understood the need for a razor blade but without one I still see the flow of air. For me, the razor blade just makes the dot of light smaller(?) If anyone can clarify me what the razor blade really does and where it should be placed (in the source of light or in the camera) I'd really appreciate. Also important to note that this is AWESOME to look with the naked eye but almost the dimmest light can blind you. I covered a tiny LED torch with aluminum foil and punctured a hole with a sewing needle, on the side! so that the LED doesn't bright directly through the hole. Take care with the eyes!!

0

0

0

24

Três Morrinhos - Terra Rica PR

0

0

0

77

Sailing to the middle of nowhere. Full vid: https://youtu.be/Sje7YRiWqDI 🤙 Support us: PATREON | FTBMates | Rum Fund - https://followtheboat.com/pub/ 👌 🤙 Or try Super Thanks! 👌 Thank you for watching, please LIKE and SUBSCRIBE, it really helps us get noticed. Peace and fair winds! Liz and Jamie #sailing #shorts #sulawesi

0

0

0

1,034

Viknes 1030 SE https://www.scanboat.com/en/17358783

0

0

0

301

0

0

0

0

642

0

0

0

0

570