berkeman's latest activity
-
-
berkeman reacted to Nick09's post in the thread Torque to turn a large Beam on a Rotisserie with
Like.
Just wanted to say thanks again to everyone who helped - its very much appreciated. Got the 1st off built up last friday and used it for... -
-
berkeman reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with
Informative.
Those are just artifacts of the SI units. They are not part of nature. They don’t even exist in some other unit systems. Space is... -
berkeman replied to the thread How good is Brian Cox as a science communicator?.Thread has pretty much run its course, so it will now be closed. Thanks folks.
-
berkeman reacted to Hornbein's post in the thread Backyard Trebuchet Breaks Sound Barrier with Like.
Carbon fiber, 3D printed parts, multiple rotations. Numerous small refinements of the design to get to a 776 mph release. Your castle...
-
berkeman reacted to Greg Bernhardt's post in the thread Extremely slow site responsiveness today on PF with Like.
Found the culprit
-
berkeman reacted to BillTre's post in the thread If we were able to prevent brain cell death as we age, would it be possible to achieve immortality or near immortality? with Like.
1) There are some dividing neuroblasts (cells that make more neurons) in at least some adult vertebrates. These have been shown to be...
-
berkeman reacted to Filip Larsen's post in the thread Can ionic thrusters be used as a secondary propulsion system for rockets? with Like.
Using a pure air-breathing engine, like a jet engine, combined with an ion engine to launch and establish low earth orbit would leave a...
-
berkeman replied to the thread If we were able to prevent brain cell death as we age, would it be possible to achieve immortality or near immortality?.You would probably need to figure out a way to keep other body cells alive in perpetuity, right? What reading have you been doing into...
-
berkeman reacted to Matterwave's post in the thread Why does the movement of electrons create fields? with Like.
I agree with "not generated". It is good to go away from the idea that fields are created or generated, they just "are". In every day...
-
berkeman replied to the thread Why does the movement of electrons create fields?.I don't know if it will help your intuition, but check out the animation of a dipole antenna at this Wikipedia page...
-
-
berkeman replied to the thread Why does the movement of electrons create fields?.Good for you! As you get more calculus under your belt, you can have a look at Maxwell's Equations. They are the equations that we use...
-
berkeman reacted to spagettot's post in the thread Why does the movement of electrons create fields? with Like.
im self studying, i am 16 and learning calculus but still a BIG NOOB with some basics here and there, im doing all this for fun
-
berkeman reacted to Baluncore's post in the thread Do you think vinegar syndrome did this to the concrete? with
Haha.
Get a pH test strip and compare the areas that have reacted differently. No. It was simply the fog of war, reacting with the mists of time.
