Giffard: The Basics
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- French aeronaute Henri Giffard made the first sustained, powered, controlled flight in September 1852. His dirigible was powered by a 3HP steam engine, and to keep the craft airborne he required a means to put water back into the tiny boiler and in so doing created the Giffard Steam Injector, a device used the world over to put water back into a steam boiler.
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I still maintain that it's witchcraft and venturi cones. The best explanation I have seen Mr Dawson, and I've been working the b****y things for 50 years! Thank you for this Sir, much enjoyed.
Thankyou. There's a dark art to the injector.......
@@AnthonyDawsonHistory I agree on your and Mr. @Douglas Fleetney, the injector is somewhat confusing, you have steam from a given boiler overcoming its own pressure,and this is counterintuitive. The Venturi effect, a special case of the Bernulli effect is responisble of "sucking" the water from the repository; but how it happens that the hot water stream overcomes the non-return check valve and pushes water into the boiler? Greetings for your explaination, very clear even if a physics professor could object on the wording - but I think your wording, even if I suppose that your wording is more effective in delivering the message to the general public.
BTW, I think that the magician's trick is that you can not compress water and so Pascal's law enters in the game, somewhat like when your car is lifted with an hydraulic lifting platform...🤔
Could you look at the neath abbey iron companies Speedwell. Right on that cusp of the more modern thinking begining to show benefits but the old ways still holding favour in some settings
Wasn't aware of this story at all, thank you for producing it. How steam punk, a open flamed boiler in a hydrogen lifted airship.
Glad you enjoyed it
Woah.
Marvelous insight into a mostly forgotten engineer. Thanks.
Very interesting. I had read of Giffard's dirigible, and that he had invented the injector, but I was unaware that the two were connected.
Glad it was helpful!
Is this Groundhog Day or what happened? Hope all's ok.
Corrected some of the French, that's all.
Exceptionally interesting.
Many thanks!
His tragic end really makes you wonder how far must we go, how much must we invent to reach satisfaction? You can be a great mind and create such marvels, but still be very unhappy.
Best, most clearest explanation of how injectors work I've ever seen. Thank you.
Thanks. They're not complicated, but often badly, and poorly explained.
Hi and happy 4th of July 🎉👌🙂
Hi Anthony. What a brilliant invention, but so sad an ending.
Most interesting.
👍
This was a fun video. I enjoy learning about the various applications of steam propulsion throughout the early 19th century. The French had some wacky ideas, indeed.
"wacky" perhaps but Giffard made the first powered flight decades before the Wright Brothers. The French also invented the first self-propelled steam powered road vehicle - and it worked too - in the eighteenth century. What some may deam "wacky" was cutting edge technology which worked. The Giffard injector revolutionised the working of the steam locomotive.
And you can add Clement Ader to the list of "wacky" Froggies. He simply invented the airplane some 10 years before the Wright Bros. Batlike winged, equippedwith a steam engine: the Eole then Avion (he coined the name too, leading to the universal word "aviation").