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Corti Creare
Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). Unedited at 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!!
The 14th edition of the RORC Caribbean 600 starts on 20th February at 11:00 AST (UTC-4). Seventy boats from all over the world are ready in Antigua for the non-stop 600nm race around 11 Caribbean islands. With over 550 sailors from 30 nations taking part, the RORC Caribbean 600 is truly an international affair. On Monday 20th February, the first warning signal will sound at Fort Charlotte for an epic race featuring a highly competitive and varied fleet of IRC Offshore boats, Class40s and Multihulls. #Caribbean600