THAT'S good. Boredom is the gateway to hard drugs. That may be why, statistically, you see lower addiction rates in subjects that have a significantly lower IQ than the general population - those subjects do not seem to have the capacity for boredom that others do. (No, I'm
NOT calling you stupid, lol.)
Err... No. You're fudging a formula there. E=
MC² defines the amount of energy contained within a given mass. There is no ".8
c," because in that equation,
c is a constant -
not a variable. You don't want to maul Einstein's mass-energy equivalence equation because the objects would not be at rest. You're dealing with kinetic energy, but Newton's formula for kinetic energy, 1/2
mv², doesn't work at speeds approaching
c. You'd need to use Einstein's formula for relativistic kinetic energy. Kind of hard to write out here.
E_k = γ
m c² -
mc² where γ is the Lorentz factor, 1 divided by the square root of (1 -
v²/
c²). Written out, it would be... Ugh, I'm not really in a "place" where I can think properly right now...
E_k =
mc² ( (1 / √ (1 -
v²/
c²) ) -1)
Now, as you can plainly see, that's still a "shit-ton" of energy. Let's see, you mentioned an object having the mass of a car? A ~2200 pound car (because this stuff is easier using metrics - and because weight (pounds) changes but mass (kilograms) doesn't - so I'm going with a 1000 kg mass, lol) traveling at .8
c. Hmm...
It's a lot.
You'll need to check my math (long day, heavy meds), but it looks like 59,917,011,915,787,842,666.666666667 joules. That's the equivilent (again check my math) of ~14,320.51 megatons of TNT.
But it's not enough to turn Terra into an asteroid field. Here are some events for the sake of comparison (some are estimated):
- Little Boy (Hiroshima) 13 kilotons
- Fat Boy (Nagasaki) 20 kilotons
- Tanguska Event (1908 comet impact in Tanguska, Russia) 10 megatons
- Ivy Mike (1952 US first test of fusion device ("dirty," 77% from fast fusion)) 10.4-12 megatons
- Castle Bravo (1954 first US dry-fuel thermonuclear hydrogen bomb test ("dirty," poisoned lots of innocent people) 15 megatons¹
- One pound of antimatter exploding 19.2 megatons
- Mount St. Helen (May 18, 1980) 24 megatons
- Tsar Bomba (1961, Soviet, largest & most powerful nuclear weapon ever detonated ("clean") 50 megatons²
- Third eruption of Krakatoa (1883, "loudest sound since man evolved as a species" 150 megatons
- Simultaneous explosion of all nuclear devices currently known to exist 10,000 megatons
- 1970 Ford Pinto impacting at .8c 14,320.51 megatons
- "Dinosaur-killer" (10-15 km asteroid impacting at "only" 20 kps) 100,000,000 megatons
- Supernova 1,000,000,000,000,000,000,000,000,000 megatons
Btw, I was thinking of something
significantly smaller than something that had a mass equal to a car.
¹ Was
supposed to be 4-6MT but the process was misunderstood (and so it was the most significant radiological contamination ever caused by the USA).
² The Tsar Bomba was actually a detuned
100 megaton device. It was detuned to reduce fallout, which was a success - it was one of the cleanest hydrogen bombs ever tested (yield for yield).
Whoops, I typed WAY more than I meant to. Sorry about that,
Propa Gator! Guess I should have just typed that a c-fractional car wouldn't shatter the planet.
if I understand what you mean? 
