pageflight
@pageflight@piefed.social
- Comment on Laser wireless charging could keep drones airborne indefinitely — improved receiver converts at 38.49% efficiency and uses nanocrystalline material for thermals 1 week ago:
By comparison for solar cells, Wikipedia says,
The record in real-world conditions is held by NREL, which developed triple junction cells with a tested efficiency of 39.5%.
So it seems the challenge may be as much in beaming enough energy to the craft. Solar-covered aircraft that sustain their own flight do not look like drones (rctestflight):
- Comment on FCC approves giant space mirror as astronomers warn of risks to the night sky 4 weeks ago:
A five-kilometer beam would not illuminate only its paying customer. Scattered light could reach nearby communities, habitats and roads. The exact reach would depend on weather, atmospheric conditions, brightness and how the mirror is aimed. Flashes created while a reflector changes direction could also distract pilots or drivers.
It’s annoying enough when my neighbor’s motion sensing porch light keeps turning on. This sounds horrible.
- Comment on Engineer turns disposable vape pen into a working web server 2 months ago:
Ionescu decided to use the chip’s ability to handle the old Serial Line Internet Protocol (SLIP).
With it, he turned the unit into a very basic 56K modem equivalent. He then added uIP 0.9 code to enable TCP/IP communication and web serving.
Hah, cool. I was wondering if it has WiFi, serial stuff makes more sense.
The ecig waste is tragic though.
- Comment on First Apple M5 memory exploit discovered using Anthropic AI, gives root access on MacOS 2 months ago:
The article didn’t say; has someone (Apple) verified the exploit? The “aren’t many details” caveat puts me on the lookout for hallucinated exploits.
- Submitted 3 months ago to technology@lemmy.zip | 3 comments
- Comment on [deleted] 3 months ago:
But we also sell an app to remind you to take a screen break and attend Mandatory Fun Time!
- Comment on EFF is Leaving Twitter 4 months ago:
Bluesky and Mastadon are on their list of socials.
- Comment on Gamers react with overwhelming disgust to DLSS 5's generative AI glow-ups 5 months ago:
- Comment on [deleted] 6 months ago:
Over and over. Time to report & block.
- Comment on Large-capacity microSD cards are now regularly out of stock in Japan as storage crunch claims another victim — high-capacity HDDs are also vanishing 8 months ago:
Maybe it’s time to properly erase and eBay my box of old HDDs?
…nope, still only $30 shipped for a refurbished 1TB WD or Seagate drive.
- Comment on A single DNS race condition brought AWS to its knees 9 months ago:
There’s a full postmortem from AWS. One piece that stands out to me:
due to the large number of droplets, efforts to establish new droplet leases took long enough that the work could not be completed before they timed out. Additional work was queued to reattempt establishing the droplet lease. At this point, DWFM had entered a state of congestive collapse and was unable to make forward progress in recovering droplet leases.
That is, the load that resulted from the initial failure was not something the system was designed to handle, so it had cascading effects / required manual cleanup.
