Tootfinder

Claros, which aims to cut data center energy losses by using voltage regulators that provide power directly to servers' main processors, raised a $30M seed (Ben Geman/Axios)
https://www.axios.com/2026/03/19/claros-seed-data-center-energy-loss

I got my EMG (Electromyogram) today where the run voltage through you with needles, and it was less scary than I imagined (or was told by someone) it would be.
And my test was negative, so that's good! Next I get to find out about another cortisone injection, and I am really hoping it works this time.

Random thought of the day: if someone wanted an EV *fast* charger at/near home, how much would the power company charge for all of the necessary infrastructure?
Like, putting a megawatt supercharger on a random residential block that's currently only wired with like 7200V single phase.
I feel like you'd probably have to run a new medium voltage line all the way out to the nearest substation. Judging by what I was quoted to run fiber a shorter distance you're talking &…

For several years now, public EV charging points in Amsterdam have also been used to provide temporary power supplies for construction projects and events, for example. The city is now actively promoting this as an alternative to diesel generators on construction sites.
https://www.amsterdam.nl/leefomgeving/o…

@… Plus there is small thing to consider - in cold temps charger needs to reduce charging voltage to not damage batteries. Usually in below freezing temps you should still get ~80% (of those 50%, so ~160Wh), but charging with too high voltage might heavily reduce that - so again, needed even bigger buffer for winter...

There are charging cont…

Solar power just hit a new milestone. Chinese researchers broke the 10% efficiency barrier for selenium solar cells for the first time, reaching 10.3%.
What makes this exciting: selenium cells have wider bandgaps and high efficiency potential. The team used optimized contacts, light-driven crystallization, and special annealing techniques.
The result? Stable devices that lost minimal efficiency after 1,000 hours of testing.

Battery tech people: do Energizer Ultimate Lithium AA batteries contain any kind of internal protection / fusing mechanism like good 18650s do? Or do they ever fail short or something?
Just pulled four out of a device. Three tested good at 1.5V and the fourth measured absolutely zero. Not like low, no voltage at all.

One thing I appreciate in the platypodes (Pendolino trains) is that the electric sockets carry labels with both the voltage and frequency.

Lightning AI merges with data center operator Voltage Park to create an "AI cloud" with a $2.5B valuation, managing 35,000 Nvidia GPUs across six data centers (Iain Martin/Forbes)
https://www.forbes.com/sites/iainmartin/20

Back from a very wet (local weather history says 1.76 inches or 45 mm of rain yesterday) SAR training weekend.
Lots of good land navigation drills both on trail and bushwhacking through heavy brush. Everyone's rain gear got a good workout and there were definitely a few hard lessons learned about underperforming gear.
Wrapped the weekend up with a mock search, finding our "missing person" with a "head injury", plus her friend who had gone for help but &quo…