berkeman's latest activity
-
I am getting too soft. -
berkeman reacted to renormalize's post in the thread I Paradox of Superconductivity with
Informative.
Are you sure? The idealized version of "the power is turned on" is a step-function in time, which contains Fourier components with... -
The time constant will depend on the radiation resistance of the superconductor. Superconductors have no resistance at DC, but at high...
-
berkeman replied to the thread I Paradox of Superconductivity.What is the source impedance of the power supply that you are using to build the current? How is it connected to the superconducting coil?
-
berkeman reacted to tech99's post in the thread A Simple math model for a Particle Image Velocimetry system with Informative.
The radar cross section of a sphere is simply pi r^2, its cross sectional area. The energy hitting this area is then reflected...
-
berkeman replied to the thread I Paradox of Superconductivity.Why are you putting a resistor in series with a superconducting inductor? That kind of defeats the purpose, no?
-
-
Alexander Shulgin’s (RIP) “well-ordered” backyard chemistry lab where he synthesized all his phenetylamines and tryptamines described in...
-
I would call them equal in value. For the most part, yes. However, the term "power" is synonymous with exponent, so for example, ##3^4##...
-
berkeman reacted to Muu9's post in the thread Physics How to close the gap: From Independent Research to Academic Discourse with
Like.
Galileo? -
The universe was full of hot dense plasma, so they mostly got absorbed. Once the temperature dropped enough (some hundreds of thousands...
-
berkeman replied to the thread I Entanglement might be the result of an underlying law?.Thread is closed temporarily for Moderation.
-
berkeman reacted to jrmichler's post in the thread States of matter: "viscoelastic fluid", familiar term is "cream" with Informative.
Here's a couple more terms. Plastic solid is a solid with a yield point. After yielding, it will continue to deform without limit...
-
berkeman reacted to symbolipoint's post in the thread States of matter: "viscoelastic fluid", familiar term is "cream" with Like.
Hey, @jrmichler ; I just tried a search in which I asked a question as input field of the search engine (related to "plastic solid")...
