theothermkn

4 ms·

1.
by theothermkn 7y ago
Some in here have been asking about risks and side effects. A quick google search turned up: https://www.practo.com/medicine-info/camostat-2499-api I'm just a layperson, but this looks like a run-of-the-mill presc
2.
by theothermkn 7y ago
One thing that's slightly interesting about Dyson Sphere's is that spherical shells of matter exert exactly no gravitational pull at any point in their interiors. That is, the integral of gravitational pull over the whole shell is
3.
by theothermkn 7y ago
It's clearly a submarine ( http://www.paulgraham.com/submarine.html ) article. The article is so light, and so full of hot air, that it practically advocates for balloon travel, not supersonic flight.
4.
by theothermkn 7y ago
Pithy, perhaps, but not entirely justified. For example, the implied causation might actually be reversed, that people who naturally trust institutions consume more news. The causal relationship could also be external to both: some other fa
5.
by theothermkn 7y ago
James Duane recently updated his advice, incorrectly restated in the article and in many places in this thread, in a book entitled You Have the Right to Remain Innocent . There is a long and short of it, but I'd rather see you buy the
6.
by theothermkn 7y ago
> "Once fusion is cracked" is almost on par with "once perpetual motion machines are cracked." It presupposes that fusion being "cracked" is a reasonable thing to expect. Oof. One need only to peruse your co
7.
by theothermkn 7y ago
https://www.health.harvard.edu/blog/will-blue-light-from-ele... This is widely debunked. The above is but one of many such counterpoints.
8.
by theothermkn 7y ago
> That story about Carmack applying cutting-edge academic research to video games has always impressed me.... He deserves to be known as the archetypal genius video game programmer for all sorts of reasons, but this episode with the acad
9.
by theothermkn 7y ago
A thought on the political, rather than technical, side of the story: I went through a regrettable phase of reading about military strategy and the like, and one of the things that stuck was how good strategies need to have a component of r
10.
by theothermkn 7y ago
> Pinker also talks about the "Euphemism Treadmill", where words that were specific medical terms turned into general insults and became unusable because of it ("spastic" in my lifetime has gone from a medical descrip
11.
by theothermkn 7y ago
I made a minor personal discovery recently along these lines and would love to hear from others here if they can reproduce it: I can "see" my hands with my eyes closed. That is, if I hold my hands out in front of my face with my e
12.
by theothermkn 7y ago
> Does the low neural activity correlate with a less active experience of the world? From the fine article: > "Neuronal overactivity may not feel like anything in particular from the viewpoint of the worm, mouse or human, unless
13.
by theothermkn 7y ago
The actual fuel cost to put things into orbit is quite small, on the order of $30/lb of payload. I've done this analysis on HN before, but the gist is that LOX and kerosene are about the cost of milk, and roughly as dense on avera
14.
by theothermkn 7y ago
'F = ma' is a special case of 'F = d/dt(mv)'. Expanding the latter via the product rule, we get: F = m dv/dt + v dm/dt, where a=dv/dt and dm/dt is the time rate of change of the mass of the objec
15.
by theothermkn 7y ago
I think that you're thinking of the cost of turning the CO2 (and water) back into fuel, which can be argued along thermodynamic and irreversibility lines to show that unscrambling that egg always requires more energy than obtained fr
16.
by theothermkn 7y ago
I think what bothers me most about this kind of paid fluff is that it fools the viewer into thinking they've learned something worthwhile, when they've only seen something pleasant. Another poster linked to a brief Wikipedia artic
17.
by theothermkn 7y ago
The limiting factor for ITER was the strength of magnetic fields that could be attained from the superconductors available at the time. The promise for ARC/SPARC at MIT is that the field strengths available have recently doubled, and p
18.
by theothermkn 7y ago
I saw him once in the early 2010s in Vertical World's Redmond location, but I didn't realize it at the time. Just some old guy in a harness feeling the holds in the bouldering area. We kept to ourselves. Later, one of the employee
19.
by theothermkn 7y ago
> "In contrast to cargo-only chemical space-gun concepts, a mass driver could be any length, affordable, and with relatively smooth acceleration throughout, optionally even lengthy enough to reach target velocity without excessive g
20.
by theothermkn 7y ago
What I'm saying is that the video contains numerous misconceptions, errors, and dubious bits of hand-waving. I'm not saying that people think they're engineers after watching. I'm saying that he is not trained as one, a
21.
by theothermkn 7y ago
The issue is that an aerospike engine is a spike engine that has been truncated, with the truncated portion replaced with an aerodynamic "spike," which also eliminates base drag.
22.
by theothermkn 7y ago
> ... given that he has doesn't have any kind of formal training in it. As someone who does have some training in it, I can say that "best space content on YouTube" is akin to "best brain surgeon in a room full of cir
23.
by theothermkn 7y ago
It is a pet peeve of mine that people call all spike engines "aerospikes." An aerospike engine has a truncated physical spike that is replaced with expanding gasses. In other words, it has an aerodynamic spike, or aerospike. Spike
24.
by theothermkn 7y ago
> [T]his proposal lacks the most compelling reason for building a space elevator: breaking the bonds of Earth's gravity well. This proposal actually addresses exactly that problem. The dangly end of this thing down around GSO will n
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by theothermkn 7y ago
There's also a video that covers it in a bit more detail: https://www.youtube.com/watch?v=43Tl39CYhNM
26.
Tokamak Energy exceeds target of 20 Tesla with HTS Magnets(tokamakenergy.co.uk)
1 points by theothermkn 7y ago|1 comments
27.
by theothermkn 7y ago
A lot of people believe this, but it is incorrect. In plywood, the glue transfers the load across the faces of each ply from strand to neighboring strand through the adjacent plies. This can result in a stronger bond between neighboring str
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by theothermkn 7y ago
This is a straightforward calculation, with modest bookkeeping requirements, that is possible with undergraduate physics and calculus. As a sci-fi author, your craft will be improved by forcing yourself to do it. You'll be concerned wi
29.
by theothermkn 7y ago
Just googling "42 sum of 3 cubes" would have yielded better answers with less fuss. In general, I always google before asking in a forum. It's like not littering. https://www.google.com/search?client=ubuntu&am
30.
by theothermkn 7y ago
Aubrey de Grey has said numerous times that he suspects that if we were able to repair mithochondrial DNA, that has about a 10% chance of being all or most of the anti-aging puzzle, in his estimation. IIRC, he admits this is speculation. St

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