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frgewut commented on What if the Placebo Effect Isn’t a Trick?   nytimes.com/2018/11/07/ma... · Posted by u/sajid
jonawesomegreen · 7 years ago
I listened to an episode about the placebo effect on the "Only Human" Podcast awhile back. Its truly fascinating, and has made me question the power of the mind in a way I hadn't before. It also has some really interesting ethical problems, is it okay for doctors to lie about placebo treatments if it actually helps?

> Kallmes performs vertebroplasty, a surgery he has helped to develop and standardize, that involves injecting medical cement into the fractured bone to stabilize the fractured area and relieve pain. He says he gets great results from his patients, and teaches the method to other doctors at conferences.

> But here’s the thing: he has no idea why vertebroplasty works. So a few years ago, he decided to test it against a placebo. Kallmes found that pretending to perform vertebroplasty – making it seem like he was injecting a needle into the spine but without the cement – had similar effects. About 40 percent of both groups experienced immediate relief from pain after the surgery. He published his results in the New England Journal of Medicine.

https://www.wnycstudios.org/story/real-doctors-fake-medicine...

frgewut · 7 years ago
I thought testing against placebo was a standard procedure in medicine and without such testing treatments wouldn't even be approved.

Deleted Comment

frgewut commented on As women have more equal opportunity, the more their preferences differ from men   science.sciencemag.org/co... · Posted by u/seagullz
jernfrost · 7 years ago
I am highly sceptical to this study. Does anyone have a list of what they measured as differences and how they did it?

The reason I am a sceptic is because as a Scandinavian I notice easily how much more macho men are in less gender equal societies and how much more feminine the women are.

I don’t think it is an accident that the world’s top female boxer is Norwegian rather than say Italian.

I do there is something to the equality paradox but I suspect it is more complex than this research suggests.

60% of published papers in life sciences turns out to be rubbish. So statistically speaking one should have a natural scepticism to any bold claims.

frgewut · 7 years ago
> I don’t think it is an accident that the world’s top female boxer is Norwegian rather than say Italian.

You mean the Colombia born Cecilia Brækhus?

https://en.wikipedia.org/wiki/Cecilia_Br%C3%A6khus

frgewut commented on Astronauts escape malfunctioning Soyuz rocket   bbc.com/news/world-europe... · Posted by u/farseer
dmurray · 7 years ago
The part when they are falling is only at an acceleration of 1g (that's what falling is). If they experienced 8g acceleration, it was before the ballistic part of the descent.
frgewut · 7 years ago
frgewut commented on Astronauts escape malfunctioning Soyuz rocket   bbc.com/news/world-europe... · Posted by u/farseer
wiz21c · 7 years ago
FTA :

>>> The crew had to return in "ballistic descent mode", Nasa tweeted, which it explained was "a sharper angle of landing compared to normal".

is it me or is it a very diplomatic qay to sell : "fallen vertically" ?

frgewut · 7 years ago
I would interpret it as "fallen horizontally" with a lot of braking happening lately in the atmosphere.
frgewut commented on This technology would spot a secret chip in seconds   spectrum.ieee.org/riskfac... · Posted by u/wolfgke
frgewut · 7 years ago
Slightly offtopic, but most easiest way for detecting tampering with hardware is weighing stuff.
frgewut commented on Hubble Space Telescope Is In Safe Mode After Gyro Failure   nasawatch.com/archives/20... · Posted by u/waserwill
sandworm101 · 7 years ago
No. The gyros are more accurate. If it were to use reference stars, through the big camera, any detected motion would be at least one pixel. So every image would be blurry. It has to react before any drift results in movement more than a pixel.
frgewut · 7 years ago
Couldn't you measure star motion over longer periods of time, then even minuscule amounts of motion could be detected.
frgewut commented on The down side to wind power   news.harvard.edu/gazette/... · Posted by u/todd8
ams6110 · 7 years ago
The example is clearly hypothetical only. We're never going to cover one third of the continental US with wind turbines.

The more important information to me is that neither wind nor solar have the power density that has been claimed.

For wind, we found that the average power density — meaning the rate of energy generation divided by the encompassing area of the wind plant — was up to 100 times lower than estimates by some leading energy experts

...

For solar energy, the average power density (measured in watts per meter squared) is 10 times higher than wind power, but also much lower than estimates by leading energy experts.

Then you have the separate problem that the wind doesn't always blow and the sun doesn't always shine, so you need a huge storage infrastructure (batteries, presumably) alongside the wind and solar generating infrastructure.

IMO nuclear is the only realistic alternative to coal to provide reliable, zero-emission "base load" power generation. Wind and solar could make sense in some use cases but not in general.

frgewut · 7 years ago
I have started to view "baseload" generation more in a negative sense (as in "can't be easily turned on/off").

Also the daytime/nighttime power consumption differs almost twice, so almost any solar added only smoothens out the difference.

Also the new offshore wind turbines (>10MW) offer some extraordinary capacity factors (~60%). Makes me wonder what these capacity factors could be if we could get to 20MW turbines.

frgewut commented on Ikarus electric “rocket” – Thrust-vectored flying ducted fan [video]   youtube.com/watch?v=RMeEh... · Posted by u/inetsee
rblatz · 7 years ago
This is our future https://youtu.be/TlO2gcs1YvM

I’m not really sure how we counter this type of threat.

frgewut · 7 years ago
Mosquito net is the first thing that comes to mind.

Then EM pulse weapons, lasers etc.

u/frgewut

KarmaCake day213August 13, 2015View Original