Ryan Kaestner

Marquette Mechanical Engineering 2018

[Teej. @TJLang70]

Packers were up 22-10 in the 3rd Q. They absolutely got hosed on a couple calls but there’s still no excuse for allowing the Vikings to score 29 unanswered points. I love my Packers but I’m sick after that meltdown.

[Chris Chavez @ChrisChavez]

1:59:30 by Sabastian Sawe. Still trying to process it. 🤯

The sub-2 barrier is gone.

Attempting to break down the factors from the shoes, the fueling, the competition that pushed him, the conditions, and Sawe's anti-doping transparency so that fewer clouds hang over this record. ⬇️
https://t.co/F63C2RIIaW

[David Epstein @DavidEpstein]

Everyone worries that AI will outthink us.

The bigger risk is that it might stop us from thinking first.

[Spittin' Chiclets @spittinchiclets]

Torn ACL and still made the play

Kyle Palmieri = certified hockey guy 💪

[FloTrack @FloTrack]

THIS IS CROSS COUNTRY ❄️🥊

Calvin Seitz wins the Brooks XC Midwest Title in frigid conditions. The Indiana native runs 15:11 and separates himself from Lucas Tanner in second, 15:16.83

#BrooksXC | @brooksrunning

[Ryan Whitney @ryanwhitney6]

This is amazing. What a story

[Sean Parker @seanparkerphoto]

Aurora over Grand Canyon right now! #aurora #iphone #grandcanyon @GrandCanyonNPS

[Turkish Archives @TurkishArc]

In Olympic shooting, they use equipment like:

> A lens to avoid blur
> A lens for better precision
> ear protectors for noise

Then a Turkish guy (Dikeç) came and won a silver medal with just a pair of GLASSES.

[Phazzee 🐼🚀 | 中国航天 🇨🇳 | 🇵🇸🏳️‍⚧️🏳️‍🌈 @PhazzeeYeehaw]

The Long March 2C Y50 first-stage booster, for the SVOM mission, fell in Guiding County (贵定县) in the province of Guizhou (贵州) within the designated hazard areas. However, the local government failed to evacuate the surrounding areas properly before launch, the booster hit the ground not long after 3pm local time. Evacuation responsibilities fall on the local governments after state-owned and private companies release information regarding hazard areas.

In the footage, the booster appears to fall on a hillside, with no explosion audible. Audio of the booster 'crumpling' can be heard as there is little propellant left. The yellow-ish smoke seen is from a propellant vent that is opened as soon as liftoff. Clean-up teams usually arrive not long after the booster is no longer airborne to isolate it from the public and remove debris, these teams also actively track it as it falls.

China is currently part-way through a transition away from using hypergolic fuelled rockets, along with working on reusable rockets that can land themselves which will effectively eliminate this problem long-term. This transition cannot take place overnight as production facilities need to be built, hardware needs to be tested, and reliability needs to be proven in-flight.

But why not equip the old boosters with grid-fins? SAST has done this on their legacy Long March rockets, notably the Long March 4C and 2D. However, CALT manufactures the Long March 2C and is not known to do this. CALT's efforts towards reuse are with the Long March 9 and 10.

But why continue to launch these rockets over populated areas? Satellites are part of the vital infrastructure of day-to-day life now, with launches of new ones needed constantly. China has three in-land launch sites that were built during the Cold War. Jiuquan and Taiyuan were built in the north to prevent easy attacks on them by the U.S., Xichang was built to enable launches to geostationary orbits while being hard to attack by the U.S. and Soviet Union. These older sites are still used today due to Wenchang not currently being large enough to support the country's launch needs, along with significant investment in and around the sites for launches.

The launch site at Wenchang is currently seeing new construction efforts as part of the shift away from the old in-land launch sites. Launch Vehicle production facilities are also being built near the Wenchang launch site to meet China's launch needs.

The legacy Long March rockets won't be phased out overnight, but they are effectively at the end of their development. Production of the legacy launch vehicles are also believed to be on the decline in coming years. Launches from the in-land sites will continue as long as they are economically viable, with Wenchang receiving funding to make sure it is the most economically viable launch site in the near future.

[Green Bay Packers @packers]

.@tomgrossicomedy has been named the NFL Fan of the Year!

Congratulations, Tom! 🏆🥳

#FanOfTheYear | #GoPackGo

[NASA @NASA]

July 2023 was the hottest month on record, according to our global temperature analysis. Overall, July was 0.43°F (0.24°C) warmer than any other July in @NASAEarth's record, and it's likely due to human activity. Details: https://t.co/2DTIfL8S1Q

[Mental Floss @mental_floss]

In 1977, climber George Willig decided his next great challenge would be scaling 110 stories in lower Manhattan.
https://t.co/x9OQgeF76d

[Grant Tremblay @astrogrant]

Just saw another "defund NASA and NSF to save the federal deficit" so I made a sign we can tap

[Ryan Kaestner @Ryan_Kaestner]

@ddritzenhein I saw you from afar but didn't get the chance to chat, glad you were able to make it!

[The Wolf of Franchises 🍟 @franchisewolf]

In 2011, Dippin' Dots, aka the "ice cream of the future", went bankrupt.

After being swooped up for relative pennies at just $12M, they were acquired last year for $222,000,000.

The crazy part? Most of the company's value wasn't from selling ice cream.

Here's the wild story:

[Smithsonian Magazine @SmithsonianMag]

America’s first Olympics may have been its worst, or at least its most bizarre. https://t.co/FuLLh8Exng

[Tom Grossi @tomgrossicomedy]

The NFC North's Reaction to the 2023 NFL Draft

https://t.co/Ls7kycmU4Y

[𝐃𝐚𝐯𝐢𝐝 𝐁𝐫𝐢𝐧 @DavidBrin]

Incredible Muon tomography creates such amazingly detailed images of new corridor under the Great Pyramid. , only a few years after we gave the inventors a grant to study asteroid interiors, at NASA’s Innovative & Advanced Concepts program – (NIAC.
https://t.co/KzNZ9BIKVC

[Molly White @molly0xFFF]

oh no