Member Since September 26, 2008 , From Olympia, United States

Recent Activity by De Punster

Answered: Why is cotton wool best insulater of heat?

The best heat insulators we ever developed were composites of fluorocarbons in ceramic matrices. We have to heat-soak them at 1,990 degrees C for at least 96 hours before they are "cooked" and all ...

Answered: Fuel vapourising

Gustur, here is the current thinking, that differs greatly from Fahrenheit's work. Basically, the specific heat of a liquid fuel is how close it is already to its boiling point at a given temperature ...

Answered: What is the smallest thing you can see under a ...

Areth, perhaps we dissent on the structure of the elusive electron. And I kinow that we dissent on the use of a telescope to capture that elusive quantum. Electrons would be very slightly difficult ...

Answered: What is the smallest thing you can see under a ...

We have yet to reach the intrinsic limit of observation. SCT observation takes down to H2 molecules in a Bose-Einstein condensate. We did that in my early days at Sandia. Now that it is ...

Answered: What is the eureka experience

"The Eureka Moment" is that priceless moment of discovery, when you have good reason to believe that no one else has documented what you are about to document for the world to record. Everyone makes ...

Answered: How does curved spacetime cause an apple to fall ...

Jack, the correct answer is: We don't know. At the risk of getting physical with you, consider: F/{mu,mu!},(2,pi),(SO,S1,S2),(S0-S1!)/(S2,S2!,T)/(T!,T1,T2),(S2/S3) = F/2/h/2[pi] (S0,S2,S2!),(S2,S3 ...

Answered: What is a factor that can be changed in an ...

Allow me, as the leader of many experiments, to quote the most famous scientist who ever smudged himself with chalkboard dust: USAF Colonel Maxwell Murphy: "Anything that can go wrong, will!" He ...

Answered: Will the earth lose it's balance?

Please note also that many of us still believe that the world is flat! And the sky is falling! One of these days, all those idiotic satellites will de-orbit and smack into old Terra Firma (or Terra ...

Answered: Will the earth lose it's balance?

I think our young friend has asked about rotational perturbation. Without going through an assortment of equations that would make your head fall off, let's say that the earth has a marvelous ...

Answered: What do you think about the grandfather paradox?

Considering my grandfather, I might want to find out if killing him would prevent my birth, which would prevent me from killing him . . . Do you begin to see why paradoxes give physicists nervous ...

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