berkeman's latest activity
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berkeman replied to the thread Do you have a working copy of Testworks for Conceptual Physics?.Thread is paused temporarily for Moderation. -
berkeman reacted to GlitchedGluon's post in the thread Undergrad What happens when two Neutrinos collide? with
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Well, there is this very successful theory called the Standard Model. It describes interactions between elementary particles, including... -
berkeman reacted to Ibix's post in the thread Undergrad Is there anything inside a black hole? with
Informative.
It's worth noting that this is an over simplification, one which contributes to the confusion around black holes (IMO) by providing a... -
berkeman reacted to phinds's post in the thread Why do we spend so little time learning grammar in college? with
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@sevensages I have read this thread with some amusement. I am a grammar Nazi, and as some on this forum know, I often correct people's... -
berkeman reacted to sevensages's post in the thread Why do we spend so little time learning grammar in college? with
Skeptical.
The universities cannot reject everyone and stay in business. The universities need students that are paying tuition to stay in... -
berkeman reacted to Averagesupernova's post in the thread High School Analog power supply output question with
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Hmmm. So a bit of quick math without a schematic. Suppose you want to supply 5 volts out at 30 amps. That's within the spec right? That... -
berkeman reacted to Flyboy's post in the thread NASA Currently trying to build a rocket to launch into space with
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Yeah, that’s one of those things where you should reach out to an existing organization first and start working with them. It’s a great... -
berkeman reacted to DaveC426913's post in the thread Programming Jokes: Lame, Science & Math Jokes! with
Agree.
Just appeared on my feed. -
berkeman reacted to Bandersnatch's post in the thread High School Red shifted tired light doubts with
Informative.
Wright's tutorial pages list issues with tired light. https://www.astro.ucla.edu/~wright/tiredlit.htm It's good to keep those in mind as... -
berkeman reacted to PeroK's post in the thread High School Red shifted tired light doubts with
Informative.
It's not enough to think something, you have to show that what you think matches the data. When Einstein developed the General Theory... -
berkeman replied to the thread Undergrad Does a Point Charge in Classical Electromagnetism Possess Self Energy?.What was a joke? And why are you trying to make obscure jokes in a technical discussion thread? -
berkeman replied to the thread NASA Currently trying to build a rocket to launch into space.OP is in the UK, so it looks like their equivalent of the FAA is the Civil Aviation Authority: https://www.caa.co.uk/ -
berkeman reacted to phyzguy's post in the thread NASA Currently trying to build a rocket to launch into space with
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If you're going to launch a rocket to even 10 km, you're potentially going to cross paths of commercial aircraft. I suspect that the...