The one thing the guy said that I find somewhat disconcerting is that our future may be one wherein the skies are filled with drones. Already, I await the first Amazon delivery drone's dropping its payload on some unsuspecting pedestrian, pet, biker or vehicle driver. Such an item need not be that heavy to be deadly.
The prospect of ion propulsion, however, is quite cool. It'd be great if we can get that t' workin' right.
Boy, I wish I weren't old enough to know what a 10-speed bike is. LOLRetrofit electroaerodynamic propulsion onto your 10-speed bike using the pedal power to generate the needed electric current.
https://www.bbc.com/news/av/technology-46310975/sci-fi-plane-with-no-moving-parts-flies-successfully
A team of scientists from the Massachusetts Institute of Technology have created the first ever plane to take flight without moving parts.
It uses electroaerodynamic propulsion to fly which is greener and quieter than traditional aircraft. Is this the future of aviation?
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Incredible stuff. For more takes on this type of advanced, pollution-free propulsion see:
https://www.theverge.com/2018/11/22...no-moving-parts-electroaerodynamic-propulsion
https://www.nature.com/articles/s41586-018-0707-9
https://www.youtube.com/watch?v=QT52oA7iqRQ
https://www.youtube.com/watch?v=pVzkdisrKG4
https://www.technologyreview.com/s/...th-no-moving-parts-has-made-its-first-flight/
https://www.sciencemag.org/news/2018/11/airplane-no-moving-parts-takes-flight
https://www.sciencedaily.com/releases/2018/11/181123135137.htm
Pretty neat, but saying that it's pollution-free is a lie. Electrical energy is not free.
Boy, I wish I weren't old enough to know what a 10-speed bike is. LOL
I got my 3-speed in 1959.
I got my 3-speed in 1959.
[emphasis added by bubba]My first bike with gears was from Sears; three speed, had a cool mileage counter mounted to one of the front forks that had a wheel that engaged the spoke in a certain way. Maybe a little later than 1959. First bike was a coaster brake Schwinn (sp?) in 1955 or 1956, one speed.
My first bike with gears was from Sears; three speed, had a cool mileage counter mounted to one of the front forks that had a wheel that engaged the spoke in a certain way. Maybe a little later than 1959. First bike was a coaster brake Schwinn (sp?) in 1955 or 1956, one speed.
True, but no moving parts means no fuel to burn or oil to consume, as well as hydraulic fluids, etc. There is nothing free in this world. I think we can agree on that.
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