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  4. Physicists manage to slow down light in a vacuum

Physicists manage to slow down light in a vacuum

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  • K Offline
    K Offline
    Kent Sharkey
    wrote on last edited by
    #1

    IFLScience[^]:

    By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

    "186,000 miles per second: Not just a good idea. It's the law!"

    And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

    P R G Kornfeld Eliyahu PeterK M 6 Replies Last reply
    0
    • K Kent Sharkey

      IFLScience[^]:

      By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

      "186,000 miles per second: Not just a good idea. It's the law!"

      And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

      P Offline
      P Offline
      Patrice T
      wrote on last edited by
      #2

      SI rules :-O

      Patrice “Everything should be made as simple as possible, but no simpler.” Albert Einstein

      1 Reply Last reply
      0
      • K Kent Sharkey

        IFLScience[^]:

        By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

        "186,000 miles per second: Not just a good idea. It's the law!"

        And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

        R Offline
        R Offline
        raddevus
        wrote on last edited by
        #3

        Kent Sharkey wrote:

        National Institute of Physics were able to slow down light in a vacuum.

        This happens all the time. You go into a meeting and t..i...m...e.....s...l......o.....w.....s. It's because the meeting is a vacuum. hint: what do vacuums do? :laugh:

        My book, Launch Your Android App, is available at Amazon.com.

        N 1 Reply Last reply
        0
        • K Kent Sharkey

          IFLScience[^]:

          By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

          "186,000 miles per second: Not just a good idea. It's the law!"

          And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

          G Offline
          G Offline
          George Jonsson
          wrote on last edited by
          #4

          Quote:

          And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

          You can write it 300 000 km/s, that's one of the beauties with the metric unit. (Try to go from yards to miles. :))

          K 1 Reply Last reply
          0
          • G George Jonsson

            Quote:

            And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

            You can write it 300 000 km/s, that's one of the beauties with the metric unit. (Try to go from yards to miles. :))

            K Offline
            K Offline
            Kent Sharkey
            wrote on last edited by
            #5

            See? That's just what's so boring about SI. Why just move a decimal place when you can try to remember just how many yards in a chain? Or ounces in a gallon ( US and/or Imperial)? It's just. So, so exciting! I think we could move to the FFF system - Wikipedia, the free encyclopedia[^] for even more excitement. Alas, only three countries still share in the excitement, dooming the rest of us to easy conversions. :sigh:

            TTFN - Kent

            G 1 Reply Last reply
            0
            • K Kent Sharkey

              See? That's just what's so boring about SI. Why just move a decimal place when you can try to remember just how many yards in a chain? Or ounces in a gallon ( US and/or Imperial)? It's just. So, so exciting! I think we could move to the FFF system - Wikipedia, the free encyclopedia[^] for even more excitement. Alas, only three countries still share in the excitement, dooming the rest of us to easy conversions. :sigh:

              TTFN - Kent

              G Offline
              G Offline
              George Jonsson
              wrote on last edited by
              #6

              Here in the Philippines it is actually even more "exciting", because they mix both metric and the US system. In some stores you by a cable by the yard and in others by the meter. My favourite is the paper sizes. The following are commonly used:

              Short (Letter)
              A4
              Long (Folio)
              Legal
              A3

              Both me and my printer are confused. And as an oddity, McDonald's is the better option because the major competitors are Jollybee and Wendy's. Must be unique in the world that McDonald's is the preferred choice. ;P

              1 Reply Last reply
              0
              • K Kent Sharkey

                IFLScience[^]:

                By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

                "186,000 miles per second: Not just a good idea. It's the law!"

                And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

                Kornfeld Eliyahu PeterK Offline
                Kornfeld Eliyahu PeterK Offline
                Kornfeld Eliyahu Peter
                wrote on last edited by
                #7

                Quote:

                The fantastic result doesn’t violate any law of physics;

                Now I'm relieved... The only thing left is to find some use for the late-light they created...

                Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

                "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

                1 Reply Last reply
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                • R raddevus

                  Kent Sharkey wrote:

                  National Institute of Physics were able to slow down light in a vacuum.

                  This happens all the time. You go into a meeting and t..i...m...e.....s...l......o.....w.....s. It's because the meeting is a vacuum. hint: what do vacuums do? :laugh:

                  My book, Launch Your Android App, is available at Amazon.com.

                  N Offline
                  N Offline
                  NickPace
                  wrote on last edited by
                  #8

                  I always thought it was because of all of the dense objects in the room...I mean managers

                  -NP Never underestimate the creativity of the end-user.

                  1 Reply Last reply
                  0
                  • K Kent Sharkey

                    IFLScience[^]:

                    By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

                    "186,000 miles per second: Not just a good idea. It's the law!"

                    And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

                    M Offline
                    M Offline
                    Marc Clifton
                    wrote on last edited by
                    #9

                    They should just measure the speed of light in a conference room. Light slows down, everything slows down, in direct correlation to the C-level of the people occupying the room. Marc

                    Imperative to Functional Programming Succinctly Contributors Wanted for Higher Order Programming Project! Learning to code with python is like learning to swim with those little arm floaties. It gives you undeserved confidence and will eventually drown you. - DangerBunny

                    1 Reply Last reply
                    0
                    • K Kent Sharkey

                      IFLScience[^]:

                      By changing how some light beams rotate, the researchers from the National Institute of Physics were able to slow down light in a vacuum.

                      "186,000 miles per second: Not just a good idea. It's the law!"

                      And apologies to those offended by non-SI units. 3x10^8m/s just seems like a boring number.

                      B Offline
                      B Offline
                      Brisingr Aerowing
                      wrote on last edited by
                      #10

                      How did they come up with the bright idea to try it, anyways? Would someone enlighten me?

                      What do you get when you cross a joke with a rhetorical question? The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism. Do questions with multiple question marks annoy you???

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