DaveE's latest activity
-
DaveE replied to the thread I Non-orthogonal bases.Yes, sometimes. We need to be a bit nimble to select basis and reference frames to make simple calculations as well as further... -
I would say this a little differently: There are things (like crystal structure) that are natural to represent using a non-orthogonal...
-
DaveE replied to the thread I Non-orthogonal bases.There are lots of materials you might run across that naturally have non-orthogonal basis to describe anisotropic behavior like strength...
-
DaveE replied to the thread I Non-orthogonal bases.This appears quite often in engineering. We use eigenvalues and eigenvectors to model dynamic systems to make the analysis easier do and...
-
DaveE reacted to PeroK's post in the thread B Is a table levitating possible, even at a minuscule probability? with
Like.
Or, a fair coin coming up heads 200 times in a row. Or, a pack of cards being randomly shuffled into a given configration. Even these... -
You should try soft iron or mild steel for the pin, not stainless or high tensile steel. The more the pin material costs, the worse it...
-
DaveE replied to the thread Electrical Unused light switch in the living room?.Since it's a town house, you might try asking your neighbors if they have one too and what it does.
-
DaveE reacted to Averagesupernova's post in the thread Electrical Unused light switch in the living room? with Like.
It's not uncommon for a receptacle to be split. For instance the bottom may be live all the time but the top is controlled by the switch.
-
DaveE reacted to berkeman's post in the thread Electrical Unused light switch in the living room? with Like.
How do you know it is unused? When you pull the plastic faceplate off, do you see any wires going to the switch? (Don't pull the...
-
DaveE reacted to gmax137's post in the thread Other Don’t have a high enough IQ for physics so I want to give up with Like.
I think everything in your post (after the first sentence) is incorrect. Here's what I know: Online IQ tests are meaningless Those...
-
As noted above the conventional method for the determination of statistical uncertainty for a function is $$\Delta f = \sqrt{...
-
DaveE reacted to BillTre's post in the thread I Potential biosignature found in Mars rock with
Informative.
Here is some related information: One of the main origin of life on earth scenarios involves the interaction of fluids from... -
DaveE reacted to Ranger Mike's post in the thread Thread No-Go plug gage allows 3 turns to enter. That's too many! with Informative.
As with all things Government is involved with, confusion. The Old ANSI standard was 1 1/2 turns. two turns Max. Then the newer standard...
-
DaveE replied to the thread 3-terminal device external modeling.I fail to see the value of hypothetical questions like this. Your "new type of electronic device" is completely undefined. Suppose it...
-
DaveE reacted to .Scott's post in the thread Question about the voltage between two charged capacitors with Like.
Are you also connecting A1 and B2 together? If it's not a full electrical circuit, the voltmeter will likely read zero. Also, this...