Physics Prof, UIllinois; APS Fellow; ex-nuclear, now baseball physicist; SABR Chadwick Award. Interests: US history; ConLaw; politics; WWI. All views my own.
Champaign IL
Joined June 2009
- Tweets18K
- Following262
- Followers7.8K
- Likes6K
That's exactly what modern tracking systems ( Pitchf/x, Hawkeye, ...) do. It is well known from these systems that a pitch loses 8-10% of its release speed by the time it reaches home plate home plate.
Alan Nathan retweeted
Today's show is available in Podcast Form NOW!
Alan Nathan, Professor Emeritus of Physics at University of Illinois on baseball bat construction and the physical factors that impacted the Home Run Derby
HR Derby | Cal Raleigh | MLB Post-All Star | Wimbledon
Listen HERE: 👇👇👇
podcasts.apple.com/us/podcas…
Maybe we should also have UML do some impact testing
We should talk! I had a long conversation last week with David Chandler (@authentic_bats) who has been working with the Yankees regarding these bats. I'll be getting some of these for my lab soon so I can do modal testing and affirm the sweet spot location (bending modes)
To what extent is the higher rotational swing speed, due to lower MOI, compensated by shorter lever arm?
Alan, @sunshinevvn did some analyses that may interest you here:
xitter.cf/sunshinevvn/status/190…
Working on it! I am trying to get more info on the mass distribution of the new bat. Once I have that, it will be relatively straightforward to figure out how the new design might impact exit velocity.
@pobguy how much could these bat changes theoretically impact exit velocities?
Can anyone out there provide me with some info on the diameter profile of the new bat design. One of my first forays into the physics of baseball was developing a computational model of the bat that allows me to simulate the ball-bat collision. I'd like to try it on this one.
My parents entire retirement income came from Social Security. It's hard to believe how out of touch this guy is.
youtu.be/BwkUSdq7a7w?si=itSB…
I once was a member of the ACLU. Some years ago I let my membership lapse. Today, I am proud to say that I am a card-carrying member once again.
For all my followers in Champaign-Urbana area. Come to the Rally for Democracy, Saturday March 29, 11-noon, Champaign County Courthouse, 101 Main St, Urbana. See you there!
I have owned my Tesla for nearly 4 years. It is the best and most fun car to drive that I've ever owned. I will keep it. But do not interpret that as an endorsement of Musk. It most definitely is not.
Janet Mills is from Farmington ME, where I once lived, 1st-4th grade. We were the only Jewish family in t own back then. If I could vote in Maine, she would get my vote against Collins.
Maine Governor Janet Mills is reportedly considering a run for the U.S. Senate against GOP incumbent Susan Collins. After taking on Donald Trump today, she’s shown that she has what it takes to win this race.
RETWEET if you would support @GovJanetMills for the Senate!
Alan Nathan retweeted
BRAVO to Maine Governor Janet Mills for slapping petty tyrant trump in the face with her calmly defiant "see you in court."
THIS IS HOW IT'S DONE. 🔥🔥🔥
Alan Nathan retweeted
Maine Governor Janet Mills is reportedly considering a run for the U.S. Senate against GOP incumbent Susan Collins. After taking on Donald Trump today, she’s shown that she has what it takes to win this race.
RETWEET if you would support @GovJanetMills for the Senate!
Alan Nathan retweeted
Few coaches developed more lifetime relationships or had the impact on his players and colleagues as the legendary Richard C. “Itch” Jones.
Our love and thoughts are with his family.
FightingIllini.com/ItchJones
So sad to learn about the passing of coaching legend Itch Jones. We would often get together to talk baseball. I will miss him.
Don't be surprised if the administration announces that Gaza will become the 52nd state and that all the Palestinians will be deported to Guantanamo.
Alan Nathan retweeted
OK, I'm just saying ... his header photo is of the Chicago Cubs.
SIGN HIMMMMMMM!!!!!
Uncatchable Knuckleballs! 😳
Kenny Serwa's uncatchable knuckleballs (up to 88.5mph). @KennySerwa
Thanks to @TreadAthletics for the clips.
For my baseball and occasional Twilight Zone posts, follow me on Bluesky bsky.app/profile/pobguy.bsky…
The Masks is in the top tier of my favorite episodes. #TwilightZoneMarathon. Superb writing by Serling.
"You kept your bargain. You wore the masks. Enjoy yourselves, dear ones. I've lived a full life. May God pity you."
#TwilightZoneMarathon
"The Masks" stars Robert Keith, Milton Selzer, Virginia Gregg, Brooke Hayward, and Alan Sues.
