@BYU professor & former Dept. Chair @BYU_PhysAstro. Karl G. Maeser award '24. Tweets about acoustics, physics, faith, running, baseball, & misc. Opinions mine.
Joined February 2015
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- Followers 1,073
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799 Photos and videos
Have you seen the video about @BYU_PASCAL's experience making acoustical measurements at the @NASAArtemis I launch of @NASA_SLS? I'm so grateful @BYU students get to have these kinds of experiences.
youtube.com/watch?v=Ytl3IimW…
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This is a great mechanical analogue of soft peak clipping!
@DSP_fact #signalprocessing
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Data-taking here we come!
Jun 12
X-59 mission conditions flight. ✔️
Today the aircraft flew at its intended conditions to create a quiet boom, reaching Mach 1.4 and 55,000 feet!
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Amazing. Just amazing.
1:42.08!!🤯🔥
WORLD LEAD!!!
17-year-old Cooper Lutkenhaus 🇺🇸 has just won the men's 800m at the Oslo Diamond League in a time of 1:42.08!
He held off Olympic & World Champion Emmanuel Wanyonyi 🇰🇪 who finished 2nd in 1:42.09.
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Hard to describe how crazy this is. That's a good D1 time. @BYUTFXC, give her a scholarship!
WORLD RECORD
Angelina Adler sets the 13-year-old age group world record, AND middle school national record in 4:38.25. She also holds the 12-year-old world record that she set TWO MONTHS AGO.
13 out of 19 girls PRed in the girls JR mile at Brooks PR
#BrooksPR | @brooksrunning
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Our research group has been contributing to this program's goal of documenting the sonic thump since 2018. We've made measurements at four test campaigns, developed new hardware, and spent thousands of hours analyzing data and running simulations. I'm so excited for @NASAaero!
Jun 5
✈️ JUST IN: The X-59 has gone supersonic!
The X-59 achieved supersonic speeds for the first time ever today — a major milestone for NASA’s Quesst mission and an important step toward upcoming flights that will demonstrate its quiet supersonic technology ahead of future community overflights.
Fast now. Quiet soon. 🔊➡️🤫
Learn more: go.nasa.gov/4o8gENs
#NASA #X59 #Quesst
ALT NASA’s X‑59 eXternal Vision System digital display shows green flight data overlaid on the forward scenery as the aircraft flies supersonic. Numerical indicators, horizon references, and a Mach‑number readout are visible on the screen.
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Yikes. That's quite the shock wave. I hope everyone is ok.
Jun 1
A break from our regular scheduled historical footage, explosion at the Ta’ Lourdes fireworks factory in Magħtab in Malta at around 6:36 local time today on June 1st 2026
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Kent Gee retweeted
May 29
If you haven't heard much about @SpaceX's Starfall project, it's planned to have Starship carry compact, uncrewed laboratory capsules into Earth orbit. The capsules will harness the unique conditions of microgravity to conduct research and manufacture goods, then return.
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Just wow. I have watched this a hundred times.
Video of Starlink 10-53 solar transit. WAI media.
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The fluid mechanics here....just so cool. @AerospaceMark and I have a publication about modeling ascent sonic booms from Falcon 9's pending. This is crazy timing.
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Kent Gee retweeted
Exit was just as impressive.
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Kent Gee retweeted
May 28
The first time I met Charlie, she brought us into her office and showed us a plaque that was given to her by the shuttle Closeout Crew after the final shuttle mission. She told us how much Closeout Crew meant to her and that the safety of our team and the flight crew are her biggest priorities on launch day. She promised to never send us, or anyone else, to the pad unless the vehicle was in a 100% safe configuration.
On our first terminal count sim she had our team stand up in front of the firing room so all the console operators could see us, and told them this is who we are sending to the pad, so make sure your systems are in a healthy configuration because they rely on it.
She has always been our biggest supporter and helped us with anything we needed. It is incredible to know if I have any issues I can go to her and she will do everything in her power to fix it. It has been one of the greatest honors of my career working so closely with her, and the rest of the launch team these past few years.
After the launch of Artemis II, I had the honor of presenting her with a new Closeout Crew plaque. This was truly an unforgettable moment for myself and the rest of the team.
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Kent Gee retweeted
May 29
Here's our video of the explosion at Launch Complex 36. It happened about 9 pm ET (0100 UTC) as Blue Origin was beginning a static fire test of its New Glenn rocket.
Watch live views: youtube.com/watch?v=thfYPsRq…
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Every year I like this video.
May 25
Every year, I share this video of French caretakers who take sand from Omaha Beach in Normandy, and scrub them into the letters to give them the gold coloring.
They do this for all 9,386 US soldiers who died.
France also gave us this land as American soil. #MemorialDayWeekend
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Read about @spacex Starship Super Heavy acoustics:
doi.org/10.1121/10.0034453 - Flight 5 launch noise and booster catch.
doi.org/10.1121/10.0035925 - Flight 5 and Flight 6 launch noise comparison.
Feel free to ask about the science!
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I don't know the specifics of this journal or decision, but a few years ago, I decided to only publish with, and review for, journals that are tied to professional organizations. If I volunteer my time, it is to build a science community, not pad publishers' profits.
May 19
A remarkable moment in mathematics publishing: almost the entire editorial board of the Journal of Approximation Theory has resigned simultaneously, declaring that “the journal, as we knew it, has ceased to exist.”
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