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uj8efdkjfdshf | 4 years ago | on: James Webb telescope reaches its final destination in space, million miles away

IMO grammatical gender in Indo European languages (of which the Germanic and Romance language families are a part of) reflect how nouns and their references (pronouns, adjectives etc) are semantically linked by modifying the word endings of the latter to better reflect those of the original noun - I like to think of it as the equivalent of type suffixes in assembly language.

uj8efdkjfdshf | 4 years ago | on: The Linux Experiments YouTube channel has been terminated

I mean, it's quite likely the ivermectin and hydroxychloroquine has some effect against the virus in the early stages of infection, but their use needs to be balanced against their side effects, of which there are many. It's like how bleach kills cancer cells, but you really shouldn't be treating cancer with it...

uj8efdkjfdshf | 4 years ago | on: Man can change his pupil size on command

You're not wrong - the cornea (front of the eye) has about 3x the refractive power of the lens. Both function as converging lenses, and the only difference is that the refractive power of the lens can be changed.

uj8efdkjfdshf | 5 years ago | on: Pressure-induced high-temperature superconductivity retained at ambient

It seems like they're describing a phenomenon where a material remains in a metastable configuration associated with a higher critical temperature, even after the pressure is removed and the sample warmed to room temperature.

That said, the Tc of this phase is still fairly low at about 30+ K, so this does not superconduct at room temperature, regardless of the pressure.

uj8efdkjfdshf | 5 years ago | on: Ask HN: Hackers locked my dad out of WhatsApp – need advice

I'm leaning towards no at the moment - mainly because the hackers appear to be based in a different country, and because they appear to be brute forcing the WhatsApp verification code API. Also, his phone could still do outgoing calls when he tried it earlier.

He said that he got a ton of SMS verification messages from WhatsApp and random phone calls from Argentina, Mexico and the US over the past few days that he was ignoring - not sure how they managed to bypass rate limiting on that.

uj8efdkjfdshf | 5 years ago | on: I tried starting a manufacturing unit in India

Some questions:

- How much would you expect to spend if you were to pay all the bribes? Are you unable to afford them, or is this more of a moral issue?

- Is there any reason why you are effectively purchasing agricultural land and rezoning it to industrial land, rather than buying existing industrial land? What is your plan if you cannot obtain all the necessary NOCs?

- Is there any utility/road/rail access to your land? If not, have you looked into how much it will cost to build the necessary infrastructure?

- Is the area at risk for natural disasters (especially flooding)?

uj8efdkjfdshf | 5 years ago | on: Why Are Plants Green? To Reduce the Noise in Photosynthesis

I think the point is that since the power available at these wavelengths vary sharply with frequency in these regions of the solar spectrum, the plant can easily compensate for brightness fluctuations in these portions of the spectrum with minor tweaks to the target wavelength of the relevant photosystems

uj8efdkjfdshf | 5 years ago | on: 2+1=4, by quinoa

The 1 cup of quinoa that you added to the start contributes the final missing cup (its packing ratio does not change much, it's just the water that changes its packing ratio).

uj8efdkjfdshf | 5 years ago | on: NASA rushing to complete Mars launch before planet moves out of range

Well, yes, NASA does rely a lot on external contractors due to the budgetary flexibility it entails. While there is some cross-communication between teams, it's generally limited by the extreme degree of specialisation needed. Also, as a general rule almost all of the hardware for any given mission is custom built for that mission, so the necessary knowhow to operate it is both unique and irreplaceable.

That said, some of the extra cost is due to scope creep, or due to changes in launch vehicle availability requiring the mission to be redesigned.

uj8efdkjfdshf | 5 years ago | on: NASA rushing to complete Mars launch before planet moves out of range

Because Mars and Earth takes different amounts of time to complete an orbit around the Sun, launching at the right point in time is absolutely essential to ensure that your transfer orbit takes you to the distance of Mars' orbit at the exact point in time that Mars will happen to be there. You can mess around with your transfer orbit parameters to give you a bit of leeway, but ultimately limits on available delta V and on maximum relative velocity on encounter limit the window of time that you have to launch your mission. See https://trajbrowser.arc.nasa.gov.

They have until mid August to launch the mission[0]. If not, the additional cost of keeping personnel employed and hardware maintained for the next 2 years or so while waiting for Earth and Mars to return to the same relative positions can easily cost $150m, if the InSight mission delay is any guide. [1]

[0] https://spacenews.com/mars-2020-launch-slips-three-days/ [1] https://spacenews.com/insight-delay-adds-150-million-to-miss...

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