LNMNMMMC
Re:Obesity rising in American women
on Tuesday June 07, 2016 @06:25PM (#11858490)
Or it could summarize the conclusions of the article
Re:GNU Taler 0.0.0 released
on Monday June 06, 2016 @09:26AM (#11846565)
With State and local spending, Military comes to ~10% of our tax dollars.
Re:A Guaranteed Income for Every American
on Saturday June 04, 2016 @06:28PM (#11838456)
You missed the part about people under 21, that should cut off another ~25% from your estimate. Medicare + Medicaid + Social Security is well over 2 billion, so I think it's pretty close.
Re:SpaceX successfully lands a Falcon 9 rocket at sea for the third time
on Saturday May 28, 2016 @04:47PM (#11793409)
Because the energy grows with the velocity squared, it's more like a quarter of the heat of a typical orbital re-entry.
No, the drag force grows with the square of velocity. https://en.wikipedia.org/wiki/Drag_(physics)#Drag_at_high_ve...
Force * distance / time = power, so the heating will scale with the velocity cubed. Therefore at 1/2 the speed, it would experience 1/8 the heating.
Re:A First Look at America's Supergun
on Saturday May 28, 2016 @04:20PM (#11793302)
This projectile is actually significantly more sophisticated than a bullet. It is going to require a significant amount of guidance/control to have any level of accuracy at 100 km. That is the real cost driver, and it saves money compared to a missile because it gets all of its kinetic energy from the gun.
Re:A First Look at America's Supergun
on Saturday May 28, 2016 @04:13PM (#11793261)
Never, more speed is good because they can program the projectiles to break apart before impact with soft targets. The limiting factor is air resistance, greater initial speeds result in more energy wasted.
Also, I believe they are (were?) looking at the Zumwalt destroyer for this weapon, which actually only has 78 MW of power output.