Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics.relativity > #430726

Re: Talking Nonsense in Einstein's Schizophrenic World

Show all headers | View raw

On 9/1/17 5:44 AM, gehan.ameresekere@gmail.com wrote:
> On Monday, August 28, 2017 at 5:13:14 PM UTC+5:30, Gary Harnagel wrote:
>> On Monday, August 28, 2017 at 4:27:23 AM UTC-6, gehan.am...@gmail.com wrote:
>>>
>>> On Sunday, August 27, 2017 at 9:45:59 PM UTC+5:30, Pentcho Valev quote:
>>>>
>>>> Lisa Randall, Michio Kaku, Brian Cox, Neil deGrasse Tyson, Brian
>>>> Greene: "Now, listen carefully. The faster you move, the heavier you get.
>>>
>>> "Now, listen carefully. The faster you move, the heavier you get"
>>>
>>> Relative to what?
>>
>> This is shortcut talk.  The faster an object moves (relative to an observer),
>> the more kinetic energy (relative to the observer), right?  By E = mc^2, or
>> m = E/c^2, the more mass the object appears to have.
>>
>>> How can you move faster compared to empty space which is nothingness?
>>
>> Empty space is not nothingness.  For one thing, it contains vacuum energy.
> 
> So the maximum Kinetic Energy an object can have relative to any observer is 1/2 mv^2 and where v=c, then 1/2 mc^2  ?
> 
> 

1/2mv^2 is not the correct expression for kinetic energy, though it's a 
handy approximation to use in everyday cases.

-- 
Odd Bodkin -- maker of fine toys, tools, tables

Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Talking Nonsense in Einstein's Schizophrenic World Pentcho Valev <pvalev@yahoo.com> - 2017-08-27 01:18 -0700
  Re: Talking Nonsense in Einstein's Schizophrenic World Bídníkùm Laterá <bila@wehia.ui> - 2017-08-27 09:52 +0000
  Re: Talking Nonsense in Einstein's Schizophrenic World Pentcho Valev <pvalev@yahoo.com> - 2017-08-27 09:15 -0700
    Re: Talking Nonsense in Einstein's Schizophrenic World Pentcho Valev <pvalev@yahoo.com> - 2017-08-28 00:55 -0700
      Re: Talking Nonsense in Pentcho's Schizophrenic World Gary Harnagel <hitlong@yahoo.com> - 2017-08-28 03:22 -0700
      Re: Talking Nonsense in Einstein's Schizophrenic World gehan.ameresekere@gmail.com - 2017-08-28 03:23 -0700
    Re: Talking Nonsense in Einstein's Schizophrenic World gehan.ameresekere@gmail.com - 2017-08-28 03:27 -0700
      Re: Talking Nonsense in Einstein's Schizophrenic World Gary Harnagel <hitlong@yahoo.com> - 2017-08-28 04:43 -0700
        Re: Talking Nonsense in Einstein's Schizophrenic World gehan.ameresekere@gmail.com - 2017-09-01 03:44 -0700
          Re: Talking Nonsense in Einstein's Schizophrenic World Gary Harnagel <hitlong@yahoo.com> - 2017-09-01 12:07 -0700
          Re: Talking Nonsense in Einstein's Schizophrenic World Odd Bodkin <bodkinodd@gmail.com> - 2017-09-01 14:53 -0500
          Mass and kinetic energy (was: Talking Nonsense in Einstein's Schizophrenic World) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-03 00:04 +0200
            Re: Mass and kinetic energy (was: Talking Nonsense in Einstein's Schizophrenic World) Gary Harnagel <hitlong@yahoo.com> - 2017-09-02 16:28 -0700
              Re: Mass and kinetic energy Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-03 02:11 +0200
                Re: Mass and kinetic energy Gary Harnagel <hitlong@yahoo.com> - 2017-09-02 17:29 -0700
                Re: Mass and kinetic energy Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-03 21:42 +0200
                Re: Mass and kinetic energy Gary Harnagel <hitlong@yahoo.com> - 2017-09-03 15:48 -0700
                Re: Mass and kinetic energy Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-04 16:38 +0000
                Re: Mass and kinetic energy Ethel Ocallaghan <unlgclo@awlwaac.ag> - 2017-09-04 16:44 +0000
                Re: Mass and kinetic energy Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-05 08:37 +0200
                Re: Mass and kinetic energy Istrátora Metiku <untw@nwpovu.un> - 2017-09-06 12:58 +0000
            Mass–speed relation (was: Mass and kinetic energy) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-09 21:51 +0200
              Re: Mass–speed relation (was: Mass and kinetic energy) Utorských Vitelé <hue@svwor.hh> - 2017-09-09 21:12 +0000
        Re: Talking Nonsense in Einstein's Schizophrenic World gehan.ameresekere@gmail.com - 2017-09-01 03:46 -0700
          Re: Talking Nonsense in Einstein's Schizophrenic World Ned Latham <nedlatham@woden.valhalla.oz> - 2017-09-01 06:02 -0500
          Vacuum energy (was: Talking Nonsense in Einstein's Schizophrenic World) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-09-03 02:23 +0200
  Re: Talking Nonsense in Einstein's Schizophrenic World Pentcho Valev <pvalev@yahoo.com> - 2017-08-28 09:28 -0700
    Re: Talking Nonsense in Einstein's Schizophrenic World JanPB <filmart@gmail.com> - 2017-08-30 16:40 -0700
  Re: Talking Nonsense in Einstein's Schizophrenic World JanPB <filmart@gmail.com> - 2017-09-02 23:26 -0700

csiph-web