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

25

0

0

0

0

301

0

0

0

0

25

Montréal Fire Fighters.. We save lives.. Montréal's Firefighters, our guardians in red. 🚒🔥 #MontréalStrong" 🚩Dollard Des Ormeaux, West Island, Montréal, Canada 🇨🇦, In the heart of Montréal, amidst the bustling streets and towering skyscrapers, lies a brigade of heroes adorned in red. Montréal's Firefighters, a beacon of bravery, fearlessly charge into the depths of infernos, battling flames with unwavering resolve. With every siren's wail, they race against time, risking their lives to safeguard our city and its people. Through darkness and danger, their courage shines bright, illuminating the path of hope for all who call Montréal home. They are the guardians of our streets, the protectors of our dreams, and the embodiment of selflessness in action. Montréal Firefighters, igniting courage, saving lives, and etching their legacy as true champions of the city. @sanndzboze #shorts, #ytshorts, #2024, #sandy, #godsownmeadow, #montréal, #canada🇨🇦, #photography, #perspective, #perspectivephotography, #trending, #trendingreels,#montrealfiredepartment, #montrealfiredepartment, #relentless, #heroes, #firerescue,#ytshorts

0

0

0

61

Most jellyfish = ouch! ⚡️ But in Raja Ampat, there’s a secret lagoon where these jellyfish don’t sting at all. Why? 🪼 Because with no natural predators, they’ve evolved to be harmless — leaving us free to float in their world. Would you jump in and swim with them? #RajaAmpat #JellyfishLake #OceanWonders #BucketListAdventure #IslandParadise #TravelIndonesia #UnderwaterMagic #SwimWithJellyfish #TravelVibes #DreamEscape #AdventureAwaits #ExploreIndonesia #OceanPlayground #TravelMore #NatureLovers 👍 If you found this video interesting, don't forget to LIKE and SUBSCRIBE for more adventure in Indonesia through Indonesian eyes! Begin your incredible adventure with SeaTrek right here: 🗺 Schedule | https://www.seatrekbali.com/schedule/ ⛵️ Website | https://www.seatrekbali.com 📚 SeaTrekker Magazine | https://www.seatrekbali.com/seatrekker-magazine/ 📧 Contact Us | info@seatrekbali.com 𝗪𝐞'𝐫𝐞 𝐚𝐜𝐭𝐢𝐯𝐞 𝐨𝐧 𝐨𝐭𝐡𝐞𝐫 𝐬𝐨𝐜𝐢𝐚𝐥 𝐦𝐞𝐝𝐢𝐚 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐭𝐨𝐨! 𝘐𝘯𝘴𝘵𝘢𝘨𝘳𝘢𝘮: https://www.instagram.com/seatreksail... 𝘍𝘢𝘤𝘦𝘣𝘰𝘰𝘬: https://www.facebook.com/Seatrekbali Visit our website: www.seatrekbali.com

0

0

0

178

0

0

0

0

259,100