[Lex Computer & Tech Group/LCTG] Speed of gravity

Thu Oct 27 11:22:47 PDT 2022

Pretty interesting

John Rudy

781-861-0402

781-718-8334 (cell)

 <mailto:John.rudy at alum.mit.edu> John.rudy at alum.mit.edu 

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Bedford, MA  01730-1047

From: Alex Berezow <newsletters at bigthink.com> 
Sent: Thursday, October 27, 2022 1:02 PM
To: jjrudy1 at comcast.net
Subject: Big Think: Crotch-biting spiders

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with Alex Berezow ● Thu 27 October, 2022

Greetings Big Thinkers,

The last time I dressed up for Halloween, I was the Phantom of the Opera. Today, if I really wanted to scare people, I would dress up as willful ignorance. Unfortunately, I don’t know what that costume would look like. Feel free to email me with suggestions!

As all of you know, ignorance is vanquished in this newsletter. And this week, we feature more great stories: the speed of gravity, the secret to becoming an excellent physicist, and why black widows bite so many men in the “junk.” Yikes.

Be careful out there,
Alex

THE BIG EXPLANATION

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=71098af234&e=fec0247b6d> How fast is gravity, exactly?

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=9bc7adbe49&e=fec0247b6d> 

I know what some of you are thinking: 9.8 meters per second squared! Wrong. That’s the acceleration due to gravity. What about gravity itself? Historically, there were two positions: gravity is either infinitely fast or merely as fast as the speed of light. Thanks to observations of gravitational waves, we know the answer.

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=58dfcd63c1&e=fec0247b6d> LEARN MORE 

Popular

*         The  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=f2a80b593f&e=fec0247b6d> worst ideas of 5 great philosophers

*         Quantum sensors use  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=71b4651c1f&e=fec0247b6d> “spooky” science to measure the world with unprecedented precision

*         “Love hormone” oxytocin literally  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=3ba4e4f751&e=fec0247b6d> heals a broken heart

*         The  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=9a1b1dbbeb&e=fec0247b6d> extraordinary journey of Leonardo da Vinci’s most mysterious portrait

THE BIG INSIGHT

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=df75e2c538&e=fec0247b6d> The secret to becoming an excellent physicist

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=3ffeff8959&e=fec0247b6d> 

Isaac Newton was probably  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=b090a55e59&e=fec0247b6d> the smartest person who ever lived. But, good news! You don’t have to be an unparalleled genius to be successful at physics. What you do have to do is your homework — and lots of it. Being a good physicist means working through tough math problems so that you can develop an intuitive sense for what is real and what is nonsense.

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=97cb9536d1&e=fec0247b6d> LEARN MORE 

THE BIG SURPRISE

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=8ef4496c86&e=fec0247b6d> Why black widows bite so many men in the “junk”

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=70a601ad03&e=fec0247b6d> 

Black widow spiders live up to their name. Though people practically never die from the bite of a black widow, some of the worst documented bites have occurred on a man’s “junk.” Why? Well, black widows like to build their webs in dark places, like basements, garages, underneath decks — and outhouses.

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=5d52aa0ade&e=fec0247b6d> LEARN MORE 

Live smarter

*         The psychology of  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=fbf1d77ca1&e=fec0247b6d> keeping secrets inside

*         Meditation  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=057d46d7b9&e=fec0247b6d> reorganizes the brain’s spatial topography

*         The psychology of  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=f7e9d30ab2&e=fec0247b6d> financial anxiety — and how to overcome it

*         From the archive:  <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=945119e950&e=fec0247b6d> Flow state: How to trigger the best performance of your life

  <https://mcusercontent.com/d8275a58d856c36f1f7ed062e/images/14cbb210-c6be-b8df-795e-c6405b7187ac.jpg> 

 <mailto:alex.b at bigthink.com> Alex Berezow is the executive editor of Big Think. He holds a PhD in microbiology and has over a decade of experience in science journalism.

 <https://bigthink.us6.list-manage.com/track/click?u=d8275a58d856c36f1f7ed062e&id=0e32548bba&e=fec0247b6d> 

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