So I was doing some reading up on in-home COVID isolation protocols and one of the things I found was that a reasonable way to measure air exchange adequacy is to check carbon dioxide PPM counts, and open windows enough keep the CO2 count under 800ppm. So it's a pretty high number really, but - still, that's the number.

And that makes sense if you ( Read more... )

Something I've always done is try to keep houses - my house - as cool as possible in summer with just ventilation. Coming from Seattle, nobody used to have AC, and that included us, so if you've got the skills why not keep using them? Saves energy and money. Everybody wins.

There's nothing mysterious about the system. You cool the house down as far ( Read more... )

When you don't like the facts, change the facts.

https://www.seattletimes.com/nation-world/nation-politics/trump-makes-a-final-push-against-climate-science-as-election-nears/

WASHINGTON - The Trump administration has recently removed the chief scientist at the National Oceanic and Atmospheric Administration, the nation’s premier scientific agency, ( Read more... )

I wrote this up for my neighbourhood association's board of directors, because they were still talking about the easter egg hunt and potluck and such, and they really need not to. So here it is for you, too ( Read more... )

I have one (1) person left on Facebook with a lot of Trumpists in his followers ( Read more... )

This is very definitely one of those "please let this hold up" science stories. Popular Mechanics jumps the gun a bit in that - according to the authors - this is "probably" not economically viable yet, but there's also a big question about what the authors consider economic viability.

From the paper online here:

We report an electrocatalyst ( Read more... )

Okay so apparently if you're reading a little before bed and you put on this 10-hour loop of the Jurassic Park theme because a character reminded you of that movie then it suddenly becomes 4am.

this is kind of a psa that both this happens and that there is a 10-hour loop of the jurassic park theme on youtube and it works JUST FINE

Also posted to ( Read more... )

I can’t figure out whether this crazy quintuple-star system is from Nightfall, the Colonies of Battlestar Galactica, or the Verse from Firefly.

WHAT SAY YOU?
[ GO HERE TO VOTE ]
Which scenario does this real life star system best fit?

• [ ] Isaac Asimov's Nightfall
• [ ] Battlestar Galactica's Colonies
• [ ] Firefly's "the Verse"
• [ ] Another system (vote in ( Read more... )

The propellentless electric drive may actually work, says latest NASA test. That's super cool. Seriously, I am crazy excited about that. I'm still holding off on going WOOHOO MOON EXPRESS because this is very much in that category of "extraordinary claims" and "extraordinary evidence," but wow, it would be amazing. Seriously, with existing ( Read more... )

I love the search results when I do math in DuckDuckGo. Here's the top hit for my latest calculation:

http://arxiv.org/abs/1208.6474

Decay of the pseudoscalar glueball into scalar and pseudoscalar mesons
Walaa I. Eshraim, Stanislaus Janowski, Francesco Giacosa, Dirk H. Rischke
( ( Read more... )