Science quiz

James Snover

The Ill-Advised Physics Amplification Co
Established Member
Premium Member
Joined
Jan 23, 2008
Messages
8,862
Location
Cypress
Say you have a blue-white diamond, flawless, it's a cube, and it measures 1" x 1" x 1, or one cubic inch.

How many molecules does it contain?
 

James Snover

The Ill-Advised Physics Amplification Co
Established Member
Premium Member
Joined
Jan 23, 2008
Messages
8,862
Location
Cypress
The F1 engine on the Saturn V booster and the J-58 engines on the Blackbird family of aircraft share something in common. What is it, and why?
 

Deceptive

Muffin is my spirit animal
Established Member
Premium Member
Joined
Feb 10, 2011
Messages
13,443
Location
Nashville, TN
The F1 engine on the Saturn V booster and the J-58 engines on the Blackbird family of aircraft share something in common. What is it, and why?

They leak fuel on the ground. They have to be built like that to account for the expansion during flight.?.?


Karen is the Ken Block of AWD minivans.
 

Coiled03

Well-Known Member
Established Member
Joined
Jun 25, 2004
Messages
12,265
Location
IL
Say you have a blue-white diamond, flawless, it's a cube, and it measures 1" x 1" x 1, or one cubic inch.

How many molecules does it contain?

14

Diamond is face cubic crystal structure so there's one molecule at each of the 8 corners of the cube, plus one in the center of each of the 6 faces.
 
Last edited:

James Snover

The Ill-Advised Physics Amplification Co
Established Member
Premium Member
Joined
Jan 23, 2008
Messages
8,862
Location
Cypress
They leak fuel on the ground. They have to be built like that to account for the expansion during flight.?.?


Karen is the Ken Block of AWD minivans.
Not quite. The F1 only vented LOX, the oxidizer. Not, strictly speaking, the fuel. The Blackbird family did vent Nitrogen; but only leaked fuel. A technical distinction, but a valid one.
 

James Snover

The Ill-Advised Physics Amplification Co
Established Member
Premium Member
Joined
Jan 23, 2008
Messages
8,862
Location
Cypress
14

Diamond is face cubic crystal structure so there's one molecule at each of the 8 corners of the cube, plus one in the center of each of the 6 faces.
Brunotheboxer got it right: one. A diamond is a crystal. A crystal is a single molecule. It's the only kind of single molecule that you can break up into smaller units, and each of those is, then, a single molecule, even though it all came from a single molecule.

It's a cheap trick, the universe does it all the time. ALL the time.
 

Lambeau

Superfleck Moonbird
Established Member
Malt Liquor Mafia
Joined
May 13, 2010
Messages
9,685
Location
Rockwood Lodge
The F1 engine on the Saturn V booster and the J-58 engines on the Blackbird family of aircraft share something in common. What is it, and why?

What: The faster the spacecraft/aircraft travels, the more fuel efficient it is.
Why: Not gonna cheat and look it up, but something about the air compression and ignition.
I know the conical engine feature on the front of the J-58 engine moves forward as speed increases.
 

Users who are viewing this thread



Top