It's pretty easy for coal. If you assume 52 pounds per cubic foot, a short ton (2000 pounds) of coal will take up 38.5 cubic feet. The heat content of coal burnt in the United States in 2012 was 19.51 million BTU.

Source: http://www.eia.gov/tools/faqs/faq…

Psh, 12.8k for a bicycle? There was a 16.5k Pinarello in my local bike shop this summer. UCI minimum weight is easy to get under if you spend your money on components. Case-In-Point: My buddy's alloy Cannondale CAAD9 frame with full Dura Ace 9000 and his heavy training wheels weighed in at 15.9 pounds. His race…

True, but if you understand that 1BTU is the amount of energy that it takes to increase the temperature of 1 pounds of water 1*F @ 1Bar of pressure, you can make an inference as to how enormous a quadrillion is.

Until you realize that without a viable storage medium, wind and solar aren't going to be good for anything but supplemental peak-load generation. High-tech, high-pressure Nuclear Fission plants are the future for base load generation, and once a viable storage medium is developed Wind and Solar will be able to…

The United States burns 40.04 quadrillion BTU's of energy every year to produce the electricity that comes out of our plugs. We only draw 13.56 quads of electricity from our plugs every year. We loose 25.22 quads of electricity every year in the Production Process. A quadrillion isn't used that often, but it is…

The Karma is a stunning vehicle, and I believe that it could be sold as a non-alternative-fuel vehicle quite easily with a non-hybrid small Diesel and GM Small-block engine options, and with a switch to some Samsung or LG battery cells and the new 2.0L Chevrolet Turbo Diesel (they say that it has to have an American…

Psh, that's not a wall of death.

Chip-

I always suggest a Honda Fit to people who want something cheap and reliable. Great little car, fantastic suspension, amazing steering, and one of the last Hondas with a truly great Manual.

I can also remove the front wheel of my 60cm road bike (it stands almost six feet tall with both wheels on and it stood on end.…

Some of the best roads you'll drive on in your life, you will find by accident. Make a turn you've never made before. Travel knowing that you have no destination and that wherever your next turn takes you will lead someplace spectacular. That's what a Sports Car is about, not about using your Nav system to find the…

My prediction on this next engine: 5.0L Coyote, direct injection, 8000 rpm. ~500hp. Just wait and see.....

I saw a review when the RX-8 R3 came out where they deducted huge points for Mazda not offering a Nav system. The F12 may be considered a "GT" car, but it's about as hardcore of a GT car as you'll find. A nav system that doesn't work well vs. a good nav system vs. no nav system: the car shouldn't be faulted for any…

Everyone bitches about "nav system this, nav system that". It's a sports car. Go get lost and enjoy the drive. Fuck nav.

If they would only add ~2" to the body structure height so us tall bastards would fit, this would be epic.

Rotary guys be like "wtf is up with all those extra parts?!? WE DON'T NEED NO STINKIN' CYLINDERS!"

Not interested because I wouldn't fit in it. Would it be a cool concept? Absolutely. I also don't see them getting anywhere near 2000 pounds without crazy exotic materials (because of safety regulations and electronic nannies that are now required).

Not a fan of the CF, the kit, interior, nor the wheels. I do love the color of the CF and how deep the clear looks. F12 in that color with that level of finish on the clear coat and it'd be spectacular.

If you look directly at the front of the 458, it looks like a Pit Viper.

Yes, completely serious. An impact on the passenger side at those speeds should be completely survivable, if the drivers are both wearing seat belts. If the officer was given a "no sirens" order (which happened a lot with a mentally unstable resident of my hometown, and we would not know if that order was given…

The other driver would have survived if he/she had been wearing a seat belt. Not the cop's fault they died.