Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile
Dan Russell (Dr. Batman)

@drussellpsu

Teaching Professor of Acoustics @ Penn State. Vibration of Sports Equipment (Baseball BATS). Acoustics & Physics Education. Follower of Jesus. he/him 🔊📳⚾️🏓

ID: 353830012

linkhttp://www.acs.psu.edu/drussell calendar_today12-08-2011 18:09:17

5,5K Tweet

1,1K Followers

873 Following

Benjamin L. Gladd (@drgladd) 's Twitter Profile Photo

GIVEAWAY! 📦🤝 Daniel Timmer's new NSBT volume just arrived. It's SO good. This is one of the best volumes I've read on a biblical-theological conception of "the nations." Follow my account and repost for a chance to win. These new hardbacks are so nice. B&H and Apollos

GIVEAWAY! 📦🤝

Daniel Timmer's new NSBT volume just arrived. It's SO good. This is one of the best volumes I've read on a biblical-theological conception of "the nations." 

Follow my account and repost for a chance to win. 

These new hardbacks are so nice. B&H and Apollos
J.C. Ryle (@jcryle) 's Twitter Profile Photo

🚨 We’re giving away a super premium Bible from Rock Wall Bibles 🚨 A Wide Margin Reference text block — bound in beautiful Olmo Nappa Lux cowhide. You don’t want to miss this. Want it? ✔️ Follow: Rock Wall Bibles + J.C. Ryle 🔁 Repost this and like 💬 Leave a comment — what

🚨 We’re giving away a super premium Bible from
<a href="/RockWallBibles/">Rock Wall Bibles</a> 🚨

A Wide Margin Reference text block — bound in beautiful Olmo Nappa Lux cowhide. You don’t want to miss this.

Want it?  ✔️ 

Follow:

<a href="/RockWallBibles/">Rock Wall Bibles</a>
+
<a href="/JCRyle/">J.C. Ryle</a>

🔁 Repost this and like

💬 Leave a comment — what
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

June has been a productive academic writing month for me. Two older conference papers finished and submitted to POMA and two Education in Acoustics manuscripts submitted to JASA. I'm hoping to finish four more POMA articles and one more manuscript for JASA in July.

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

I LOVED this book Andy Weir! Read it in 2 days (needed a sleep break). One of the most interesting encounters with aliens I've ever read. And really good science. OK - I'm biased because I'm an acoustician and the alien communicates and "sees" using sound. Can't wait!

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Ooof. I just saw a post on LinkedIn from a former student who was an undergrad when I started teaching who just celebrated their 25th year with their company. I know I've been teaching for 30 years (started in 1995) but somehow I feel older when I see former students aging.

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Doing some experimental modal analysis on baseball bats to see how the "torpedo" barrel shape affects the location and width of the sweet spot => does the shape shift the node locations in the barrel? First up is the "normal" bat Paul Goldschmidt swung last year.

Doing some experimental modal analysis on baseball bats to see how the "torpedo" barrel shape affects the location and width of the sweet spot =&gt; does the shape shift the node locations in the barrel? 
First up is the "normal" bat Paul Goldschmidt swung last year.
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

For several years I’ve been fighting a losing battle with squirrels at our bird feeders. Red pepper does nothing & they crawl over/through baffles or chew them to pieces. This weekend I built two electric fence shock systems that seem to be working quite well so far. 🐿️⚡️⚡️😂

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Recent POMA conference paper just published: "Helping students learn to read mathematical acoustic equations as descriptive sentences" pubs.aip.org/asa/poma/artic…

Recent <a href="/ASA_POMA/">POMA</a> conference paper just published: "Helping students learn to read mathematical acoustic
equations as descriptive sentences"

pubs.aip.org/asa/poma/artic…
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

30 years of making animations . . . I'm updating HTML code for my Acoustics and Vibration Animations website (for WCAG accessibility and HTML5) and found an archive of my site from 25 years ago with a photo of me in my office at Kettering University. acs.psu.edu/drussell/demos…

30 years of making animations . . . I'm updating HTML code for my Acoustics and Vibration Animations website (for WCAG accessibility and HTML5) and found an archive of my site from 25 years ago with a photo of me in my office at Kettering University.
acs.psu.edu/drussell/demos…
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

I really hate the brand new PSU ECoRE Bldg. Temp on 1st floor 71F, 2nd floor 72.2F, 3rd floor 73.4F. My office on 4th floor is 76.6F with two fans on high and door wide open. I'm sweating while sitting and typing. Office AC doesn't work unless 75% of offices are occupied.

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Made a new movie trailer for one of the graduate courses in #Acoustics I'll be teaching for the Graduate Program in Acoustics Penn State Penn State College of Engineering this Fall 2025 semester. youtu.be/fKPA5HL76Ps?fe… via YouTube

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Two weeks ago I had Goldschmidt’s torpedo bat in my lab for vibration testing. Today I’m at Yankee stadium (with my family for Old Timers day) watching him swing it trying to help the Yankees get back to winning some games.

Two weeks ago I had Goldschmidt’s torpedo bat in my lab for vibration testing. Today I’m at Yankee stadium (with my family for Old Timers day) watching him swing it trying to help the Yankees get back to winning some games.
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Words to live by: "Buy books, acquire books, read them when you can. You should always have more books in your library than you have read. You should never have read all of your books. If you have read them all, you're not buying fast enough." youtu.be/1E8PGchwuGA

Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

I've always been a huge fan of the extensive footnotes in Pierce's "ACOUSTICS" textbook . . . but I've found a new favorite: "Wind Waves" by Kinsman. Writing style is delightfully refreshing for a textbook, but this full-page footnote on Bernoulli family history is amazing!

I've always been a huge fan of the extensive footnotes in Pierce's "ACOUSTICS" textbook . . . but I've found a new favorite: "Wind Waves" by Kinsman. Writing style is delightfully refreshing for a textbook, but this full-page footnote on Bernoulli family history is amazing!
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

“We made the discovery (some people never make it) that real books can be taken on a journey and that hours of golden reading can be added to its other delights. (It is important to acquire early in life the power of reading sense wherever you happen to be.)” C.S. Lewis.

“We made the discovery (some people never make it) that real books can be taken on a journey and that hours of golden reading can be added to its other delights. (It is important to acquire early in life the power of reading sense wherever you happen to be.)”
C.S. Lewis.
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

I've been reluctant to read "The Discarded Image" (not sure why) but decided I need to read it because so many other books I've been reading mention or refer to it. Fortunately I managed to find a good used copy with a much better looking cover! jacque boatman Andrew Snyder

I've been reluctant to read "The Discarded Image" (not sure why) but decided I need to read it because so many other books I've been reading mention or refer to it. Fortunately I managed to find a good used copy with a much better looking cover! <a href="/jacqueboatman/">jacque boatman</a>  <a href="/Andrewnsnyder/">Andrew Snyder</a>
Dan Russell (Dr. Batman) (@drussellpsu) 's Twitter Profile Photo

Really frustrating when you buy a used book from a bookstore and the book cover shown matches the covers of the rest of the set you are trying to complete but when the book arrives it has a completely different cover!! I ordered it specifically because of the cover shown!