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!!

0

0

0

21

0

0

0

0

443

0

0

0

0

4,320

😱 Titan Implosion: https://youtube.com/shorts/lGkRFEXDl4c Scientists believe the Titanic will disintegrate completely and disappear within 7 years. Currents, salt corrosion and a metal chomping bacteria, Halomonas titanicae are eating away the ship at an accelerated rate. This Is Why The Titanic Is Disappearing https://youtube.com/shorts/KObFrFyRaX0 #titanic #submersible #titan

0

0

0

6,385

In a world premiere, discover the all-new Lagoon 38 and enjoy an exclusive visit to our Bordeaux Shipyard. Visit the full range and be among the first to see the EIGHTY 2, still in production, an exclusive reveal reserved for our guests. -- En avant-première mondiale, découvrez le tout nouveau Lagoon 38 et accédez à une visite privilégiée de notre chantier bordelais. Visitez la gamme complète et soyez parmi les premiers à découvrir le EIGHTY 2, encore en production, une révélation exclusive réservée à nos invités. Contact your dealer: https://www.catamarans-lagoon.com/fr/evenements/journees-exclusives-bordeaux-0 #lagoon #lagooncatamaran #catamaran #ExcluiveDays #dreamdestination #bordeaux

0

0

0

658

Johannes och Axel förbereder sig för match mot SM 2an i lätt tungvikt.

0

0

0

173