O'Reilly logo

Smaller Faster Lighter Denser Cheaper by Robert Bryce

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

2

THE TREND TOWARD SMALLER FASTER LIGHTER DENSER CHEAPER

THE BRAIN

The gravimetric power density of the human brain is 100,000 times that of the Sun.*

Yes, it sounds implausible. The Sun is massive. It’s the engine for nearly all life on earth. But it is a verifiable fact. My pal Mark Ehsani, an engineering professor at Texas A&M University who heads the school’s Advanced Vehicle Systems Research Program, first told me about the power density of the brain in 2010.1 He walked me through the math. Our brains make up just 2 percent of our body weight, and yet they consume about 20 percent of all the calories we burn.2 The average power flow in the ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required