Quick test of a tiny QEV cannon firing air at 12atm, viewed through a Schlieren setup (no razor blade). 1/8th speed (15fps) and improved video performance because somehow Youtube cropped the last frames of the other videos (?) 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

59

0

0

0

0

88

0

0

0

0

328

We went out for a sail on the SF Bay up to the brothers and back. Always a little exciting to go under a bridge!

0

0

0

208

St. Pete's Beach Part 2 - Join us as we snorkel the underwater ruins of Fort Dade at Egmont Key, explore Shell Key for sand dollars and birdlife, and ride with wild dolphins jumping in our wake on the way back to Gulfport. We end the day watching a stunning sunset at the iconic Don CeSar at St. Pete's Beach. Florida history, wildlife, and pure Gulf Coast adventure all in one episode! Cheers - Rodney & Cyndi #EgmontKey #FortDade #ShellKey #DonCeSar #Dolphins #FloridaVlog #SailingIntoNirvana #sailingcouple @SailingIntoNirvana Website: http://sailingintonirvana.com Social: http://facebook.com/@sailingintonirvana Patreon: http://patreon.com/sailingintonirvana Fire Dragon Spices: http://piraterodneys.com ___________________________________________________ 🎵 Copyrighted music licensed from Lickd. https://lickd.co Magic Power by Triumph, https://t.lickd.co/l/XrW6NYvNWaQ Water Glow by Tom Boddy, https://t.lickd.co/l/8JDmn28136l

0

0

0

1

Give it a thumbs up if you liked this episode! Get your Sailing Into Freedom Crew T-shirt: https://teespring.com/stores/sailing-into-freedom Want more? Became our patron and get access to exclusive content. https://www.patreon.com/sailingintofreedom If you would like to support with single donations click here - https://www.paypal.me/Plukky Check out some gear we have on the boat: Inverter https://www.amazon.com/Xantrex-PROWatt-Inverter-Model-806-1220/dp/B002LGEMOQ/ref=sr_1_5_mod_primary_new?dchild=1&keywords=marine+inverter&qid=1616102481&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sr=8-5 handheld radio https://www.amazon.com/Standard-Horizon-HX210-6W-Compact/dp/B07KN6LKVG/ref=sr_1_6?dchild=1&keywords=marine+radio&qid=1616102542&sr=8-6 (As an Amazon Associate I earn from qualifying purchases and I greatly appreciate your support!) Also follow us on - Instagram: https://www.instagram.com/sailingintofreedom Facebook: https://www.facebook.com/sailingintofreedom Our website: https://www.sailingintofreedom.comGive it a thumbs up if you liked this episode! Get your Sailing Into Freedom Crew T-shirt: https://teespring.com/stores/sailing-into-freedom Want more? Became our patron and get access to exclusive content. https://www.patreon.com/sailingintofreedom If you would like to support with single donations click here - https://www.paypal.me/Plukky

0

0

0

3,088