I wonder what are the factors determining the rate of growth for plants. I have only the basic understanding that growth rate depends on how fast the...
. Doppler radar can eliminate all the clutter, since they look only at shifted frequencies corresponding to targets moving toward you. Hmm, It...
lower is not a problem since typically you have unobstructed horizon on the high see. faster, how fast they are flying ? 2-3 Machs ? This still leave...
Makes no difference if laser beam has enough power density.
No, If you can't confuse it and you run slower it will get you, perhaps little later if you paddle faster. So computers are important and your...
there are no fast enough ship to outrun guided torpeado. With dumb one your chances are much better. You know, rep rate for lasers is very high...
torpedoes doesn't change equation, since they affect air carrier and battleship same way. (how about anti-torpedoes nets?) As for the low flying...
Today air power is a decisive factor and aircraft carriers dominate marine warfare since Second World War. However, with the advent of femtosecond...
OK, I have my theory if no one offers better explanation. The case of diode illustrates the difference between classical and quantum approach. For...
Typical laser diode emits from 2x5um source beam with gaussian cross section distributed over the 20deg x 5deg angle. Now, if a flat light wave would...
Can you include a link that points to description of the experiment you talking about ? I understand that information is carried rather by the...
At first I was baffled by ram jet getting up to 7M speed. I needed to do more reading to see that it is indeed possible. Now, all what you say makes...
I understand that this is 3 stage to orbit proposal: 1. fan jet carrier up to 3M, 2. scram detachable boosters up 7M, 3. rocket up to 28M. One...
I think any attempt to develop this thing is hopless. There are too many complications. I give up. The final insights: - the sound energy input...
I did simplified calculations. assuming mass = 740T, acceleration 6g, time 17.5s to the Mach 3 speed on the 9.1 km track. Required power = 22.5GW....
corrections: its enema, so no eating. And not to stomach but intestine. It is more fun for a lab tech who prepares this s**t rather then a...
Sound pressure.
Only in the middle. In a tiny,tiny middle and for a small fraction of time: focus energy and then relax and recover heat. It will not happen anywhre...
Solid sphere tenths of meter accross. (Kind of hot though)
However, if you manage to deliver the 5e13Wm-2 in 1us, you need 5e7Wm-2 to warry about. That roughly 6 times more then a 100W lightbulb (circa). But...
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