Ken Fabian's latest activity
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Ken Fabian replied to the thread Playing the guitar, the difference between being good and being a genius.....The understated excellence of JJ Cale comes to my mind. Not blistering virtuosity (I do like those too) but somehow doing more with... -
Ken Fabian reacted to berkeman's post in the thread Simple kinematics problem — falling from a geostationary satellite with
Like.
Welcome to PF. That's a trick question. If you release a marble from a geostationary satellite, it just continues in the same orbit as... -
Ken Fabian replied to the thread Electric Vehicle Fires on Ships.Like with shipping any dangerous goods, including regular ICE as well as battery electric vehicles, improving the safety standards and...
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Ken Fabian replied to the thread AI vs. Humans as Processors in an Environment.Could be arguing over sloppy language but AI itself doesn't compete for the resources - AI aren't choosing to build themselves or...
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Ken Fabian reacted to jack action's post in the thread AI vs. Humans as Processors in an Environment with Like.
AI is not competing; it is a machine, a tool. You may say people using AI are competing with other humans for particular resources or...
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Ken Fabian replied to the thread AI vs. Humans as Processors in an Environment.Not convinced AI competes with humans directly - rather it allows some humans to compete better with other humans. And to track...
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Ken Fabian replied to the thread Anyone like “2001: A Space Odyssey?”.A lot I liked about 2001, especially visually, ie the depictions of space technologies and zero gravity, which so many SF movies get...
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Another possibility: a segment of the lightning path is approximately circular, and the observer is at the center of the circle. The...
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I always thought that the speed of sound in air is about 340 m/s and used the rule "three seconds per kilometer" for a quick and dirty...
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Ken Fabian replied to the thread High School Propagation of Thunder.Ah, good catch. I got that very wrong - thinking 1200 metres per second when it is 1,200 (approx) km per hour. Post has been edited. Thanks.
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Ken Fabian replied to the thread High School Propagation of Thunder.A lightning bolt can be many kilometres long as well as reach high altitudes. There is sound transmitted through the ground as well as...
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Ken Fabian replied to the thread Methane as a greenhouse gas.The largest part of the long tail of methane warming is going to be from the CO2 produced - persisting long after the methane itself has...
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Ken Fabian replied to the thread Methane as a greenhouse gas.Surely average residence time is not the same as how long before it has all decayed to CH4 and H2O from contact with OH radicals - some...
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Ken Fabian replied to the thread Why no heatpump/refrigerator combos?.@sophiecentaur - I suspect my government will differ from yours and future governments will differ from present ones. Decarbonising...
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Ken Fabian replied to the thread Method of storing energy on the Moon.@sophiecentaur The principle commercial opportunity - once we look beyond communications and Earth observation satellites, that service...