Viewing profile — ar813

That's wild! Now I want to go hunting for more such examples..

If I take a step back and think back to say a few (or 5) years ago, what LLMs can do is amazing. One has to acknowledge that (or at least, I do). But as a scientist it's been rathe…

If they can do this to Harvard, what hope do other universities have?

Between NIH grant-making being slowed down and this, there is no way to interpret these moves than being an underhanded way of causing university research infrastructure to collaps…

The answer to this problem lies here: “Entsminger pointed out that roughly 80% of the river’s flow is used for agriculture, and most of that for thirsty crops like alfalfa, which i…

Erdős apparently came up with the following poem to break the ice, which is pretty funny! This is the city of Madras / The home of the curry and the dal Where Iyers speak only to I…

This was unfortunately the norm in his community at the turn of the century. A rather detailed study about the historical context of marriage among women in Ramanujam's community (…

I think the points raised are reasonable and, to my mind, not particularly partisan (though I would argue one party is more responsible for the current chaos by several orders of m…

Singapore is similar, in that pay for top public servants is competitive with top private sector pay. And they try to attract the best and brightest.

I don't think it will reduce the need for energy storage. If it does, it might be in some marginal cases and by a small amount. This is because the power generated using this appro…

Yes that distance matters in so far as getting the heat to the thermoelectric can be a bit more challenging. However I believe this has been investigated before and there are likel…

There was an analysis done on the theoretical (Carnot/ 2nd Law) limits of using Earth's infrared emissions in this way: https://www.pnas.org/content/111/11/3927.abstract (Roughly 4…

Yep!

One way to understand this cooling effect is that it occurs because at wavelengths where greenhouse gases are not substantially absorptive, heat can effectively escape out (or at l…

Yes! Most natural materials have a relatively high emissivity at the infrared wavelengths associated with "typical" room / terrestrial temperatures. So in that sense, pretty much a…

Hi there - I'm the lead author of this paper. Not a big fan of this particular write-up.. it's not a solar panel at all! But happy to answer questions. The NYT actually had a detai…

Following the Tolkien reference, migrants trying to cross the border are like Sauron’s army? Orcs? I’m not sure this world needs more ways of dehumanizing the desperate people and …

I admire the author's willingness to see possibilities for positive change here, including through restorative justice. It is especially admirable in the context of the fundamental…

Yes, it emits more radiation/ heat when hotter. A nice feature of radiation is that scales as T^4. It's pretty durable on its own. That being said, as we've moved to the product st…

The great thing is that we can use existing manufacturing processes (which we are already using) to do this extremely cheaply at large volumes. So the cost at scale will be competi…

You can still get cooling, but you get less heat rejection per unit area in high humidity because of the effect you point out.

Sorry, that's the convention of the journal. It's W/m^2 -- heat rejection per unit area.

I'm one of the authors / people working on this. Yep, radiators like the ones on the ISS are pretty much the dominant/only ways to get heat out in space. In response to your questi…