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Science > Blackbird (wind-powered vehicle) - How science is done (theory vs experiment simple example)
Geo 2021. 8. 21. 20:25
Science > Blackbird (wind-powered vehicle) - How science is done (theory vs experiment simple example)
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* Gossip: Note how both sides go back and forth between theory (simple classical mechanics) and
experiment (building a model/vehicle and taking measurements) to understand what is happening.
This is a great example of how actual science and engineering is done, with simple enough theory
for the general public to try to understand the principles underlying the science/engineering/tech.
Should think about this more... and try to write up an article/text later.
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The wind-powered Blackbird vehicle. Courtesy of Rick Cavallero
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Blackbird (wind-powered vehicle)
https://en.wikipedia.org/wiki/Blackbird_(wind-powered_vehicle)
Blackbird is an experimental wind-powered vehicle, built in 2010 to demonstrate that it is possible for such a vehicle to go directly downwind faster than the wind. Blackbird employs a rotor connected to the wheels and does not have a motor, battery or flywheel.[1] It was constructed by Rick Cavallaro and John Borton of Sportvision, sponsored by Google and Joby Energy in association with the San Jose State University aeronautics department.
In a test supervised and recognized by the North American Land Sailing Association in July 2010, Cavallaro achieved a speed of 27.7 mph (44.6 km/h) sailing directly downwind in 10 mph (16 km/h) winds: almost three times the speed of the wind.[2][3][4][5] In 2012, Blackbird also demonstrated sailing directly upwind with twice the speed of the wind.
In 2021, University of California, Los Angeles physics professor Alexander Kusenko disputed the claim citing the role of possible wind gusts and other factors in the apparent accomplishment, having seen a YouTube video on the Veritasium channel by Derek Muller. Kusenko and Muller entered into a $10,000 bet that required Muller to prove the validity of the claim, which was witnessed by noted scientists, Neil deGrasse Tyson and Bill Nye. Muller won the bet to Kusenko's satisfaction with a series of model experiments, investigation of the original supporting data of the Blackbird run, and exploration of the supporting equations.[19]
Blackbird (wind-powered vehicle) - Wikipedia
Blackbird traveling downwind faster than the wind, as shown by the streamers on the vehicle and the flag on the ground, pointing in opposite directions. Blackbird with fairings to improve performance. Blackbird is an experimental wind-powered vehicle, buil
en.wikipedia.org
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Google > blackbird downwind car
https://www.google.com/search?q=blackbird+downwind+car
blackbird downwind car - Google 검색
2010. 6. 4. · The Thin Air Designs car, called the Blackbird, was built by Rick Cavallaro, an aerodynamicist, paraglider and kitesurfer, who was alerted to ...
www.google.com
Others > blackbird downwind car
https://www.bing.com/search?q=blackbird+downwind+car
https://search.naver.com/search.naver?query=blackbird+downwind+car
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A YouTuber bet a physicist $10,000 that a wind-powered vehicle could travel twice as fast as the wind itself — and won
Aylin Woodward Jul 28, 2021, 9:01 PM
https://www.businessinsider.com/youtuber-won-10000-bet-with-physicist-over-wind-powered-vehicle-2021-7
JULY 12, 2012 REPORT
Blackbird cart runs with wind only twice as fast
by Nancy Owano , Phys.org
https://phys.org/news/2012-07-blackbird-cart-fast.html
JUNE 4, 2010 REPORT
Wind-powered car goes down wind faster than the wind
by Lin Edwards , Phys.org
https://phys.org/news/2010-06-wind-powered-car-faster.html
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A Physics Prof Bet Me $10,000 I'm Wrong
7,727,786 views Jul 1, 2021
Veritasium 9.87M subscribers
https://www.youtube.com/watch?v=yCsgoLc_fzI
Can a Wind-Powered Car Go Faster Than The Wind?
7,260,378 views May 30, 2021
Veritasium 9.87M subscribers
https://www.youtube.com/watch?v=jyQwgBAaBag
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* Gossip: Interest here is... traditionally, aviation is prohibitive for batteries. Would it be possible in the future?
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#sponsored #airship
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