UCLA researchers have developed a nickel-iron battery that recharges in seconds and lasts for 30 years.
  • gwl [he/him]@lemmy.blahaj.zoneEnglish
    2·
    8 天前

    Y’know, I had a feeling I put the wrong unit and then was like “nah… Sounds right”, I should have went with my first instinct

    • Zink@programming.devEnglish
      4·
      8 天前

      you can think of the units of measure as multiplying and dividing sort of like the numbers themselves.

      So if the nuclear battery continuously delivers 1 watt…

      In one hour it would have delivered 1 Wh or watt-hour, because 1W * 1h = 1Wh.

      And it works in reverse. If it takes 2 hours to deliver that 1 Wh? That’s 1Wh per 2 hours or 1Wh/2h=0.5W!