[Lex Computer & Tech Group/LCTG] Meeting Reminder: Archimedes and his principle, presented by Charlie Holbrow. 10AM ET, May 3, 2023. Lexington Computer and Technology Group

[Jonathan Goode]

 (NOTE: Initial Reminder.)



This meeting will be available in the Lexington Community Center. You may
attend in person or via Zoom.



Our Zoom Meeting ID is 972 6146 0830. Detailed instructions for joining us
on Zoom are at the end of this message.



*May 3, 2023*
Charlie Holbrow will talk about Archimedes and his principle. Three parts:
1. King Hiero, cheating goldsmith, Archimedes running naked through the
streets of Syracuse shouting Eureka
2. When a barge full of scrap iron sinks in a canal lock, does the water in
the lock rise or fall?
3. When the dirigible Hindenberg burned disastrously in Lakehurst, NJ in
1937, how much hydrogen burned and how much energy was released?

*Below are our plans for Upcoming Meetings. For more schedule information,
please refer to https://wiki.toku.us/doku.php?id=lctg_speaker_schedule
<https://wiki.toku.us/doku.php?id=lctg_speaker_schedule> *

*May 10, 2023*
Joseph Henry, America's Most Prominent Physicist after Benjamin Franklin.
(Presented *in person* by Professor Michael Littman of Princeton University)
*Joseph Henry (1797-1878) was Professor of Natural Philosophy at Princeton.
His interests focused on electromagnetism. A contemporary of Michael
Faraday, he discovered self-induction in current-carrying coils. The unit
of induction — the Henry — is named in his honor. He pioneered the creation
of high magnetic fields, electric motors, and the telegraph. He became
Secretary of the Smithsonian Institution when it was formed in 1846.*




*May 17, 2023*
The New Nova on Notre Dame that aired 12/14/2022; video and recent
events *SPECIAL
NOTE  -* *Links to many of our previous sessions are available online at
http://lctg.toku.us/ <http://lctg.toku.us/>, thanks to the diligence of
Steve Isenberg. This includes our sessions*

   - *Prion Diseases https://youtu.be/M-eFxsEKQuI
   <https://youtu.be/M-eFxsEKQuI>*
   - *Windows 11; is it time? https://youtu.be/NhlDobQ9eGY
   <https://youtu.be/NhlDobQ9eGY>*
   - *Generating Oxygen on Mars https://youtu.be/56-xpi3hEvc
   <https://youtu.be/56-xpi3hEvc>*
   - *Facial Recognition **https://youtu.be/6eupcUxqggU
   <https://youtu.be/6eupcUxqggU>*
   - *Voyager Spacecraft Update, Lessons Learned **https://youtu.be/ox2wl0E_PH8
   <https://youtu.be/ox2wl0E_PH8>*
   - *Cognition, Affect, and Learning: The Role of Emotions in
Learning **https://youtu.be/sf2JL3zwrmg
   <https://youtu.be/sf2JL3zwrmg>*
   - *Early Digital Computers  **https://youtu.be/a1KN0KiOnMs
   <https://youtu.be/a1KN0KiOnMs>*
   - *For the Love of Physics
   https://www.insidehighered.com/news/2015/03/10/despite-mits-decision-delete-walter-lewins-lecture-videos-live
   <https://www.insidehighered.com/news/2015/03/10/despite-mits-decision-delete-walter-lewins-lecture-videos-live>*
   - *Ukraine Update **https://youtu.be/zbSYGw3a3aQ
   <https://youtu.be/zbSYGw3a3aQ>*
   - *Einstein Rings **https://youtu.be/DOj5pOADjM0
   <https://youtu.be/DOj5pOADjM0>*
   - *Crypto Crashes and Crypto Culture https://youtu.be/OMuhB_AFIwA
   <https://youtu.be/OMuhB_AFIwA>*
   - *Scientific Misconduct **https://youtu.be/dN3lykmu4CE
   <https://youtu.be/dN3lykmu4CE>*
   - *Quantum Entanglement https://youtu.be/dOmZqbU1sC0
   <https://youtu.be/dOmZqbU1sC0>     *



If this email wasn't addressed to you and you would like to join the group,
or if you have a friend or colleague who might also be interested in
joining, it's easy.  Ask them to go to the group's wiki page at
http://LCTG.toku.us and follow the simple instructions under "Join the
Email List".  By being a member of the group you'll get reminders of
upcoming meetings and infrequent related messages. No advertising.  The
list is tightly managed.

Membership is free and given that all meetings are available on Zoom you
only need to be connected to the Internet to join. It's ok to join from
anywhere you can get a decent Internet connection.

   - We, the Lexington Computer and Technology Group, will meet Wednesday
   at the usual 10AM Eastern Time online, using the Zoom Video Conferencing
   Application, facilitated by Steve Isenberg. (If noted above, we may also be
   at the Lexington Community Center.)

There is an instruction page at https://toku.us/zoomish but note that the
URL and phone number shown are examples.



To join our online meeting, sometime after 9:45 AM on Wednesday, choose one
of the following options:

   - If you have the Zoom application installed, start it and join meeting
   with ID 972 6146 0830
   - From your browser, go to: https://zoom.us/j/97261460830
   - From your smartphone, tap this: +16468769923,,97261460830
   - From a “dumb” telephone, call 1 646 876 9923 and enter meeting ID: 972
   6146 0830


   - Once the connection is established, you may need to locate and use the
   on-screen controls that turn on the sound and the video. You should be able
   to see and hear others and they should be able to see and hear you, if you
   have a camera and microphone (each of which you can unmute selectively).
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