• mkwt@lemmy.worldEnglish
    41·
    2 months ago

    I think a lot of people understand the concept of light-seconds, which can measure distance in seconds.

    Allow me to introduce the gravity-second. 1 gravity-second of mass-energy is enough mass-energy to have a Schwarzchild radius of 2 light-seconds.

      • davidgro@lemmy.worldEnglish
        33·
        2 months ago

        Size of a black hole.

        Certain mass = certain distance

        Distance = seconds

        Therefore mass = seconds

        • uis@lemm.eeEnglish
          9·
          2 months ago

          Then I don’t even want to be in same solar system with millisecond heavy object.

          • davidgro@lemmy.worldEnglish
            9·
            2 months ago

            You most certainly don’t, that’s a radius of about 300km (186 miles) and a mass of 101 suns.

            Even if you meant microsecond, that’s 1/10 of the sun, and would be very disruptive.