Here’s a picture of it while it’s still in the shop. https://inspenet.com/en/noticias/nasa-tests-solar-sail-in-solar-in-orbit/
Haven’t heard about the NASA design yet, but JAXA’s 2010 IKAROS used "Eighty blocks of LCD panels are embedded in the sail, whose reflectance can be adjusted for attitude contro ".
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I have a browser extension for that. When I open a page and a ‘subscribe’ popup hides the text, I click on that button, and it shows me the URL it’s going to block, and I click OK. The next time I get tricked into going to that page, it tells me it’s blocked.
For very long-time, high-probability safety, the surface of the Earth is constantly being re-shaped. Whole mountains can disappear in a few million years. Floods, earthquakes, ice, weather alone.
Svalbard’s a ‘seed vault’ only, there must be something for extinct animal species. Another question I thought of: if stored on the moon, who among the finders will know enough to even know that they’re looking at? let alone to make purposeful use of it?
Maybe you’re new enough that you haven’t found the Mint forums,
the best source for fixing obscure Mint problems, and full of Cinnamon users -and- a decent search. I only wonder how many people use Nemo from the command-line.
‘Theeeere once was a girl from Nantucket’ … well, sort of works.
Wouldn’t that be ‘ping’ ?
“Works perfectly” huh? That’s better than most can claim before freezing! ACT NOW! for a BIG discount!
The 2003 event produced the biggest-ever solar flare ever measured, an X45. That year, several BIG transformers exploded in South Africa. This event’s biggest so is 8.7. A lot depends on where it’s aimed at … but anyway , no, we are not prepared.
Wow. It was only after reading comments on this post until that I remembered WHY I was more than happy to leave Reddit behind. Too bad so many of these diseased children moved over here.
It took just one comment: ’ What is “4000ac”? ’ to start the drool-fest.
Got a neuralink? One word you never wanna hear: ‘Oops!’
Yeah! Did that once, many years back. took a couple weeks. Used a ripper program that went out on the net and got all the metadata, saved to a HD (now on the third one). Put the CDs in Logic cases (no-wear), recycled the jewelboxes.
Over time, started to drop album folders into VLC, save the playlists, at ur fingertips.
The year of the four linux desktops, I hope! (I have 3, but two need to go to the landfill).
After the thousands of years of human history I’ve read about, getting rid of competitors seems to have been the primary concern of most of the ruling classes all over the world. Way back to Ur.
But I’m not in the field. My reasoning for posting this: I see news about PFAs a lot, this was fresh to me and I was glad to hear the news that chemists are at work on the problem (many communities in WA have contaminated water). And simply-enough for ‘newbs’ to learn from. I don’t find a ‘technology for experts’ ‘community’ on Lemmy.
Livescience is far from the best source, but I checked that they had a link to the study (Science) in it.
It appears, going by the comments, that others who are not ‘in the field’ were happy to learn about. It’d be great if more people ‘in the field’ would post about such discoveries now and then.
The balloon + helium has to be lighter than the (couple of liters of) air it displaces.
He Density (at STP) 0.1786 g/L
The density of air at sea level is about 1.2 g/L
Another interesting factoid about rare elements: Very little nickel is found in the Earth’s crust. Most nickel has arrived on Earth from meteors. Usually mixed with iron, which held-back the arrival of the iron-age.
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Me too! (I can only wish I could hear the Carlin version.)