New, improved secon...
 
Notifications
Clear all

New, improved second (time standard)

4 Posts
3 Users
0 Reactions
2 Views
(@geeoddmike)
Posts: 1556
Noble Member Registered
Topic starter
 

In the 6 May 2022 edition of the NGS Weekly newsletter, there was mention of the linkage of heights of clocks to relative accuracies. Interesting discussion. The links in the blurb did not work on my system. I copied and pasted the Seattle Times article here: https://www.seattletimes.com/nation-world/get-ready-for-the-new-improved-second/

BTW, this issue prompted me to review Arne Bjerhammerƒ??s 1986 ƒ??Relativistic Geodesyƒ? Technical Report (NOAA TR NOS 118 NGS 36) available from the NGS site.

Anyone have links to research on this issue??ÿ

Here is a screen capture of the NGS blurb.

5E03F7A1 2CD0 4BBF A109 0FA7C707C080
 
Posted : 26/05/2022 10:07 am
(@mkennedy)
Posts: 683
Honorable Member Customer
 

It looks like the research was published in NOS NGS Technical Memorandum 77 which is an update of NOS NGS Technical Memorandum 73 .

 
Posted : 26/05/2022 4:06 pm
(@geeoddmike)
Posts: 1556
Noble Member Registered
Topic starter
 

@mkennedy?ÿ

Thanks for the link.

I have not kept up like I hoped. Being retired for 14 years is no excuse.?ÿ

Cheers,

DMM

?ÿ

 
Posted : 26/05/2022 5:40 pm
(@john-nolton)
Posts: 563
Honorable Member Registered
 

If one is interested in time and General Relativity you will also want to search at WWW.NIST.gov/physics

Look for Strontium one

name; Jun Ye

See JILA Atomic Clocks Measure Einstein's General Relativity at millimeter scale.

All very interesting

JOHN NOLTON

 
Posted : 26/05/2022 7:32 pm
Share: