[time-nuts] Why, How and When Redefining the SI Second

[Tom Van Baak]

This from the ION/PTTI mailing list...

Two great talks, online, for free:

1) Why, How and When Redefining the SI Second

2) Google’s Use of 3D Building Models to Solve Urban GNSS

The video link is: https://vimeo.com/505359672

Details:

 >
 > Institute of Navigation’s ITM/PTTI 2021 VIRTUAL conference
 >
 > ITM/PTTI 2021 Plenary Session
 >
 > Last week, attendees of the Institute of Navigation’s ITM/PTTI 2021
 > VIRTUAL conference were treated to two timely keynote addresses:
 >
 > Dr. Elisa Felicitas Arias, live from Paris, gave a fascinating 
presentation,
 > “Why, How and When Redefining the SI Second” – currently a hot topic 
for time metrology.
 >
 > Google’s Dr. Frank van Diggelen gave an overview and update on
 > “Google’s Use of 3D Building Models to Solve Urban GNSS.”
 >
 > Both keynote addresses were well attended and so interesting,
 > we wanted to share them with you.
 >
 > Watch the ITM/PTTI 2021 Plenary Session
 > https://vimeo.com/505359672
 >
 > Annual Awards and Fellows Ceremony
 > We also wanted to share the ION's Annual Awards and Fellows Ceremony
 > featuring today’s superstars in positioning, navigation and timing.
 >
 > ION’s Annual Awards and Fellows Ceremony may be viewed on a complimentary
 > basis at: https://vimeo.com/505755810
 >
 > The entire ION ITM/PTTI 2021 VIRTUAL conference, including video 
presentations,
 > abstracts, and full papers, is available online for the next 30 days.
 > Register at ion.org for access to the entire program.
 >
 > Please forward this to any colleagues you think might also be 
interested in watching these.
 >

/tvb