inktvip
@inktvip@lemmy.dbzer0.com
- Comment on 'Windmill': China tests world’s first megawatt-level airship to capture high winds 8 minutes ago:
Kinetic energy is exactly what’s harvested, which is why modern wind turbines are not far off the theoretical limit of the amount of energy that can be extracted. (Betz’s law)
By taking energy from wind, you slow it down. Slow it down too much, and it can’t get out of the way in time for new air.
- Comment on Eyes in the Sky: A Comprehensive Survey of Ukrainian Unmanned Aerial Vehicles (UAVs) 2 months ago:
That was about the lock in part. Most of the mavic footage I’ve seen seems to be digital at least, though I recall something about them changing the RF frequencies constantly to avoid jamming.
- Comment on Eyes in the Sky: A Comprehensive Survey of Ukrainian Unmanned Aerial Vehicles (UAVs) 2 months ago:
I highly doubt the mavics used in Ukraine still run the stock firmware
- Comment on The "standard" car charger is usually overkill—but your electrician might not know that [32:26] 3 months ago:
What they do here for (a good amount of) home car chargers is read out the electricity meter using their serial port and dynamically adjust the charge current to never take more than those 3x25A.