opensores

Joined 4 years ago

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Jan 26
threatripper 8300 @outlook
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Comment · 3 years ago
NYC is highly walkable, and very large. Same with London.

The benefits of large walkable cities is that people get motivated to do urban 'hikes' and the hours of exercise are much larger than in typical cities (especially compared to walking and cycling unfriendly cities).

As far as 'conspiracy theorists' this represents a vast spectrum of individuals, and no doubt that would be foolish to lump into a single one-dimensional stereotype unless your aim is some sort of propaganda or social conditioning.

Comment · 3 years ago
Coffee is an anti-thiamine factor (because of compounds like caffeic acid, which also exist in Dcaf). It also hinders absorption of thiamine and minerals such as iron. Other than modifying nutrient absorption, it also has benefits, such as raising stomach acid, which is beneficial for protein rich meals. So coffee with a real breakfast (eg., hash browns and eggs) should be beneficial.

Coffee on an empty stomach is not good over repeated long term occasions, as it leads to cortisol spikes. If empty-stomaching coffee, it is a good time to pop some trace metal and mineral pills (iron, manganese, zinc, selenium, chromium, moly, boron, magnesium).

Any problems with thiamine are easily reversed via thiamine supplementation. I try to take B-50 complex two or three times a week, and a thiamine supplement on alternate days, roughly at the same frequency.

Coffee does seem to have net benefits. It's good against brain cloud.

Comment · 3 years ago
https://en.wikipedia.org/wiki/Vorticity

If anyone is looking for a fun numerical simulation project I highly recommend reading up on the Vortex Lattice Method, which is an approximation that turns a problem of fluid mechanics into a the problem of solving a system of linear equations.

Comment · 3 years ago
I got steam going perfectly on MX linux, but the AMDGPU setup was a royal PITA to get working. Took me days to figure out. Definitely not turnkey. Maybe ubuntu is better in this regard, but too far open sores for my taste.
Comment · 3 years ago
back in the day when sharks were not equipped with laser ranging devices.
Comment · 3 years ago
all "old" computer users urged to move to unix/linux.
Comment · 3 years ago
this will work only if it's Xorg that has crashed.

For a kernel panic or lockup I think it's a combination roughly similar to:

1. Ctr-Alt-PrintScreen

2. continue to hold Alt

3. R-I-S-U-B as a sequence, to make certain things happen and like syncing the file system

Comment · 3 years ago
oops, correction first sentence should read:

The rocket achieves orbit from the potential energy plus the kinetic energy. (Both kinetic and potential energy factor need to be a taken into account at the time the air drop.)

Comment · 3 years ago
I think there might ve been a court scene in Bicentennial Man. i never saw that movie though, only the trailer. I haven't seen Black Mirror either.
Comment · 3 years ago
It gets orbital speed and kinetic energy from the aircraft.

Being dropped from a 747 the kinetic energy is far smaller than the potential energy. The 747 goes perhaps mach 0.8-something with a ceiling over 40,000 ft; say roughly 14 km.

That potential energy is equivalent to about 530 m/s.

(So, in terms of energy, you are comparing a bit under Mach 1 with a bit over Mach 1.5.) sqrt(2 g h) if you want to do the arithmetic: g=10m/s/s and h=14km.

So added together we are talking about Mach 2.5 equivalent launch speed from the aircraft stage, from an airliner like a 747 or 707. This is significant. Remember you're also doing the equivalent of accelerating the propellant that would be needed to accelerate the rocket up to this energy.

Now if you launch it from something like a military craft (Mig 31 or Tu-160) then you can ballpark add another Mach 1, so we're in the ballpark Mach 3.5 region. Probably exceeding Mach 4 for the Mig 31, but of course it only could launch a small orbital rocket.

Now Kerbal is an interesting way to get very crude approximations. And the reason usually that my above simple calculation ends up not impressing as much as it should is that the orbital rocket needs to transition from a horizontal flight path to something much steeper, or it will take a very long path through the upper atmosphere. This long path ends up creating a huge amount of friction eating into much of your gains imparted by the air launch.

Even though the atmosphere ~30 km high is incredibly thin, it will burn your vehicle that is racing though it at speeds that are ballpark Mach 10 (possibly considerably higher). In other words, massive amounts of friction.

A ground launched vehicle can take almost the shortest way, and pierce the atmophere with minimal friction---almost a vertical path through. That is ground launch's biggest advantage. It will pierce the thickest part of the atmosphere vertically and gracefully and optimally arc into a horizontal path near its peak (the height of the orbit).

Comment · 3 years ago
Yeah it's a hunger suppressant but it can wear out your adrenals if you use it that way regularly and very often. (spikes cortisol if you drink it on an empty stomach; I think it's either the chlorogenic acid).

Coffee is best with a meal; it raises the stomach acid, which improves digestion of the meal. Plus you don't get the cortisol spike when it's taken with a substantial meal.

Definitely wean yourself away from adding sugar to coffee. I have it without any sugar, but a bit of cream, and nible a pastry along side drinking the coffee. So if you can nibble on something sweet, absolutely skip the added sugar in the coffee.

Comment · 3 years ago
unless you keep your cell phone a few cm away from your body physically you are generally exposed to above thermal limits (assuming you have airplane mode off and data or wifi enabled). Even the periodic tower pings may be above thermal limits, though typically they are short burts over very high intensity.

And then there's this risk (below) which should make you think twice about putting your telephone in your pant or jacket pockets.

https://www.bitchute.com/video/XGg7UNCgnx4d/

And now back to the thermal limits. If you are exposed above thermal limits you are raising your cancer risks. This was known since the 40s (eg ww 2 radar operators) and is well established. In the past few decades the only debate was whether sub thermal limits of microwave and UHF and higher frequency RF raises cancer risks; the evidence is slowly piling up, and it seems those urging caution are being proven correct.

Comment · 3 years ago
AI lawyers, my goodness. I've never even seen this in sci-fi. Welcome to the future!

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