Everything posted by swansont
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Mass of a photon particle...
The momentum is E/c, meaning the force is P/c (P being the power). Twice that if reflected, as exchemist notes. Randall Monroe did a calculation (which I confirmed) that levitating a 1 kg squirrel on a perfectly reflecting mirror requires about a “Back to the Future”-esque 1.21 GW. So not a big effect for light with a more pedestrian power level. Solar sails have to be big for any reasonable payload It does affect the earth by a tiny amount. Somewhat more dramatically, it can have an effect on small satellites, including causing non-uniformly-shaped ones (or ones with a non-uniform albedo) to tumble, after enough time. It contributes to the YORP effect. https://en.m.wikipedia.org/wiki/YORP_effect#:~:text=The Yarkovsky–O'Keefe–,of its own thermal radiation.
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Suicide Prevention
! Moderator Note I think the larger point is that you don’t seem to be addressing the issues that are raised, and there’s a decided lack of rigor.
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Transgender athletes
I’ll take that as a “no” As usual.
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Transgender athletes
What does make one a woman? Is it genetics? Is it genitalia? Is there a definition that covers everyone? I don’t suppose you have evidence to back this up.
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Transgender athletes
I think you said all but a handful of trans athletes choose not to compete at an elite level, and I want to know where they went. Since it’s a choice, they must have the ability to do so. They must have done so at some point. Winning, if they are to compete at an elite level. OK, where are they? And they’d be winning championships, if they are going to be competing at a world elite level. If they can’t win at the college level, how can they be be competing against the champions of the NCAA from that and earlier years, and the elite competitors from other countries? And there are many such athletes, but they aren’t trans. There are athletes who have complained about the damage that drugs they are allowed to (and expected to) take do to them. Shaquille O’Neal has been quite open about taking anti-inflammatory drugs and painkillers in order to play basketball. It’s common among gridiron football players (Toradol, for one). Aaron Rodgers admitted to taking ayahuasca, a schedule 1 drug. Not prohibited by the NFL. It seems that protecting the players happens when not doing so impacts the bottom line. The NFL covered up concussion issues for years until it was too obvious that it was an issue. They don’t want PEDs because of the notion that it’s cheating, and that’s an image problem.
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Too many tangents (bots, trolls and socks, oh my!)
Just because they used Tor doesn’t make them a bot. People use VPNs or dynamically-assigned IP addresses. I’ve seen instances of spammers using the exact same IP address as were previously used by long-time members. How do you determine that it’s a bot?
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Reintroduction of Quantum Field Theory into modern science
Time is not something that interacts.
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OceanGate Submersible Goes Missing During Titanic Dive
Yes. But as long as the compression of the submersible’s material and water are not the same, the effects won’t cancel.
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OceanGate Submersible Goes Missing During Titanic Dive
Water density increases under pressure. The vessel itself would decrease in volume (bulk modulus isn’t infinite) https://water.lsbu.ac.uk/water/water_density.html
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Too many tangents (bots, trolls and socks, oh my!)
Because all bots use the same IP address? Or that would tell us anything useful?
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Transgender athletes
Any evidence of this hidden horde of trans athletes that choose not to compete at elite levels? Until last year trans athletes in the US could compete in NCAA sports with no restrictions, AFAICT (testosterone testing was then implemented) Exactly one has won a championship, and that was last year. That’s the extent of college competition that could ascend to the elite level. That’s out of 32 trans athletes competing in college in the US. 15 in high school (2 girls) What does this have to do with trans athletes? i.e. people who are not using performance-enhancing drugs?
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Transgender athletes
When you offer up hypotheticals in response to a request for evidence, it suggests there is no evidence. Quoting someone saying largely the same thing else isn’t evidence. It’s not even a hypothetical. So this is to protect the transgender community? Couldn’t they just choose not to compete
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Transgender athletes
How will this handful of participants “set back” women’s sports? We don’t need hypotheticals here - some sports organizations have permitted trans women to compete. Are they winning all the trophies? Are cis women not competing anymore?
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OceanGate Submersible Goes Missing During Titanic Dive
I had wondered why they kept referring to the passengers as “mission specialists” https://www.newyorker.com/news/a-reporter-at-large/the-titan-submersible-was-an-accident-waiting-to-happen “Although it is illegal to transport passengers in an unclassed, experimental submersible, “under U.S. regulations, you can kill crew,” McCallum told me. “You do get in a little bit of trouble, in the eyes of the law. But, if you kill a passenger, you’re in big trouble. And so everyone was classified as a ‘mission specialist.’ There were no passengers—the word ‘passenger’ was never used.” No one bought tickets; they contributed an amount of money set by Rush to one of OceanGate’s entities, to fund their own missions.”
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Human Evolution
Sure it has. There are no more of them. They are all dead. Thus, they are extinct. Which doesn’t change the fact that there are no more of them. Which really happened. We don’t know who the last of most species are, or when that happened, except for rough estimates, even for lineages that died out. The ones we know are the anomalies, not the norm, and partly because we’re living in a mass extinction event. Their name was not changed on some whim. There are defining characteristics of H. erectus not present in later species. Your argument is like saying red is blue, because we can’t objectively nail down exactly where each color transitions to the next one in the ROY G BIV spectrum.
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Transgender athletes
And I debunked the claims in the other thread. The “pressure” includes buying clothes. The number they cite is medical or social transition. They don’t, IIRC, give a number for sex change operations. The citations don’t support your claim.
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Transgender athletes
He’s just re-upping his assertion from the thread I linked to above. Failed to provide a citation then.
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Transgender athletes
It can’t be often if it’s a rare occurrence. Trying to create an equivalence of teen transitioning rates with murder rates by calling them rare blatantly ignores the rather large difference in the rates at which they occur. I seem to recall dredging up the numbers for genital surgery for teens in the US in another thread; it’s about 20 per year. Compare with the murder count, which is roughly a thousand times larger. That’s not universally true edit: https://www.scienceforums.net/topic/127240-how-best-to-stop-excluding-trans-kids-from-sports/page/5/#comment-1238814
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Human Evolution
You said I was Homo erectus That’s not how the classification system works
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Human Evolution
My species is Homo sapiens. Or are the biologists wrong?
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Transgender athletes
I think this is the wrong line of questioning. I don’t care what anyone thinks, pertaining to this. It’s not at all uncommon for people to think things that are not true, and that rare occurrences are widespread; we see this all the time these days in politics. I want evidence.
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Human Evolution
I’d have gone with the little blue pill joke, but are you going to address the point?
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Human Evolution
Point to a living Homo erectus.
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How to Convert Diffusion Rate to Hertz
A cycle, yes. But you haven’t described a cyclic system.
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Transgender athletes
Are you having a reading comprehension issue? “Isn’t within the realm of discussion” comes closest, seeing as Tyson has not declared themselves to be transgender. Is it that outrageous to want to discuss facts and actual occurrences, rather than, as I said, a made-up scenario? The latter smacks of a desperate attempt to stir the pot.