Why did you put background music? Just because you could? There is already echo in the warehouse, and background music makes perception of your narration much harder. Did it ever occur to you that if people want to listen to music while watching a video, they will just listen to whatever music they like?
Significant lift enhanced from low ceiling above the craft, and induced low pressure area above it -- reverse of ground effect. It's unclear that Atlas would have succeeded in still air, over an open tarmac, with only the sky above it. The low ceiling also restricted and impacted re-circulation patterns for each rotor at the center of the craft. I'm not sure why the AHS Sikorsky Prize team never questioned this, as it appears to be a carefully constructed breach of the original prize intent. This fact was carefully avoided in their ground effect modelling. Many people flying drones inside have already encountered the strong suction effect of getting to close to the ceiling ... which unlike ground effect is pretty stable, getting close to the ceiling rapidly increases lift until it impacts the ceiling uncontrollably. Google this: "quadcopter near ceilings"
We just need so so much more of this. Imagine if science/development never turned away from human power in favor of various fuels. Progress would be slower but what kind advancements would have possibly been made? We could be living in a world where everything is just powered by our own movement...
rubbish, when i was 7yo, i dedicated myself to focussed physical training program and achieved human flight by opening and closing my umbrella at a rapid speed.
Exceptional energy efficient transportation technology developed that the stupid greedy ignorant automakers need to adapt into mass manufactured vehicles, velomobile, scooter, bike, motorcycle, car, SUV, truck, bus, automobiles or passenger vehicles that are aerodynamic like the Aptera solar electric //
Still trying to find a vid that details the steering limits. W/ the 93T main chainring overlapping the wheel it looks like only a few degrees of steering in either direction. So they start straight and better keep it straight because if you veer too much there is no room for recovery. Great piece of work and great results.
This is very cool. And even if such a bike is unuseable in the traffic and daily life it shows the possible improvements of cycle efficiency by an aerodynamic design. Even twice the air resistance of this bike is far less than with a standard time trial bike and would probably be fully useable for daily use. I think that is what the velomobil has. Just a note: at 3:10 the tire definitely protrudes much more than 4mm, closer to 10-15mm.
Tod works out like crazy. Im not sure how fast of a sprinter he is but he definitely has very strong legs and great endurance. I just watched a documentary about man powered flight and he helped design and piloted the plane. Very interesting documentary. If you are interested in watching it just let me know and I'll drop the link ✌️
@@EJ-74that’s nice, but he’s not Fillipo Ganna. I agree if you could get a top sprinter to commit to learning how to pilot one of these (they are very difficult to ride) you would see the record broken.
Now give us bike lanes who are worth the name and not just 50cm stripes from the road. Then i get myself a Velobike, its fast (I can output 60-70km/h easily) and makes fun.
I am going to buy one in my future. I like efficient vehicles , l am now a child; waiting it to be advanced on that era. Keep it up you are my dream.🤩🤩
The most obvious conclusion upon viewing this video is that birds are truly remarkable creatures. Picture the body of a bird in place of the bicyclist in this video and note the huge surface area taken up by the four rotors. That there is the proof. Even when you consider non-dimensional parameters. For instance, a hummingbird is exceedingly smaller than a human. But aren't there even very large birds that can fly vertically upwards for periods much longer than a minute? And of course this is a helicopter, not a rigid wing aircraft like the one McCready built and which was successfully flown by its human power plant across the English Channel. My advice is, Humans: don't even think about human powered helicopters/drones. You can be much better rewarded by focusing on human powered fixed wing aircraft.
