HNHacker News
TopNewBestAskShowJobs

ScottKolo

32 karma · joined April 11, 2017

submissionscomments
ScottKolo··on 240W USB-C PD chargers are nearly here, says Framework CEO
While amperage is indeed a problem, PD 3.1 uses 48 volts to deliver 240W. https://www.usb.org/usb-charger-pd

That’s only 5 amps, but such a high-ish voltage is enough to lead to arcing. Charging cables are likely to require additional safety measures.

ScottKolo··on Nasa Study: Mass Gains of Antarctic Ice Sheet Greater Than Losses (2015)
A few notes before the denial camp arrives:

- They point out that the Antarctic ice sheet is gaining in mass due to the melting/compaction of snow from the past 10,000 years, not because of anything having to do with global temperatures.

- Ice losses to calving (ice breaking off and falling/drifting into the ocean and ultimately melting) are still massive, increasing, and "will catch up with the long-term gain in East Antarctica in 20 or 30 years -- I don’t think there will be enough snowfall increase to offset these losses.”

- Also, this article is from 2015. Here's a more recent analysis from 2018: https://www.nasa.gov/press-release/ramp-up-in-antarctic-ice-.... You can even see the East Antarctica trend that the 2015 article talks about in this plot from the 2018 article: https://www.nasa.gov/sites/default/files/thumbnails/image/su...