engineer
Earth
Joined May 2017
- Tweets 165
- Following 156
- Followers 17,183
- Likes 208
0.0059 m/s^2: acceleration of Earth's center of mass due to Sun's gravity
0.0023 m/s^2: Coriolis acceleration due to ISS pitch rate of an astronaut translating at 1 m/s through @Space_Station
3.3e-05 m/s^2: acceleration of Earth's center of mass due to Moon's gravity
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9.81 m/s^2: acceleration of object in freefall at Earth's surface
8.68 m/s^2: accel of @Space_Station center of mass
1.63 m/s^2: accel of object in freefall at Moon's surface
0.034 m/s^2: centripetal accel at equator (makes you slightly lighter) due to Earth's rotation
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I've always wondered just how inertial (i.e. non-accelerating) various reference frames are. Yesterday I finally sat down and did the math. Some of the relative magnitudes surprised me.
Here we go -- comparing accelerations (rough values):
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The #NewAstronauts often hear from returning crews that helping others to suit up for a spacewalk is a one of the most challenging jobs on @Space_Station. @Astro_FarmerBob did an amazing job in that role today helping @Astro_Raja and me practice at @NASA_Johnson.
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Woody Hoburg retweeted
Congratulations, @NASAInSight and @NASAJPL! We look forward to all the knowledge the InSight Lander will provide us about Mars as we prepare astronauts for the same destination. #MarsLanding
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Woody Hoburg retweeted
Expeditionary skills are an important focus of #astronaut training. Recently spent two weeks backpacking in Utah while exploring canyons with this fine team of awesome people. @NASA @csa_asc @NOLSedu #NEVERSTOPexploring
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Woody Hoburg retweeted
The 2017 NASA Astronaut Class has passed the one-year mark in their extensive training. Check out how much they’ve accomplished since the last time we saw them.
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Had a great time with Administrator @JimBridenstine and my #newastronauts classmates discussing our training on nasa.gov/watchthisspace.
Check out pictures from today's LIVE episode of Watch This Space with @JimBridenstine and the newest class of astronaut candidates where they talked about their training experiences, hopes for future space exploration missions, and more. 📸 - flic.kr/s/aHsmsNnWhA
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Had a great time today seeing the aeronautics work at @NASA_Langley
Hot? We’ve got quite a fan in our 14x22 wind tunnel! The 40-foot diameter fan includes nine wooden Sitka Spruce blades and is powered by a solid cyclo-converter type drive with a 12,000 HP synchronous motor. Pictured: NASA Astronaut Candidate Class of 2017
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Formation flying in the @NASA T38 is great training for fast-paced operational teamwork. It's a treat getting to fly with my #newastronauts classmates, including @Astro_FarmerBob, @lunarloral, and @Astro_Kutryk.
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Woody Hoburg retweeted
What a great time to be involved in human space exploration! Congratulations to the crews of the upcoming @NASA @Commercial_Crew missions and all those who have been working towards making this a reality! #LaunchAmerica
A big hello from all nine of our @Commercial_Crew astronauts! Learn more about their missions to fly on @BoeingSpace & @SpaceX spacecraft and how this will return human launches to American soil for the first time since 2011: nasa.tumblr.com/post/1765912…
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Woody Hoburg retweeted
Tomorrow we’re introducing you to the 1st humans that'll launch from U.S. soil since the final Shuttle mission in 2011. Join us at 11am ET to meet @CommercialCrew astronauts that’ll fly on @BoeingSpace & @SpaceX capsules to #LaunchAmerica to @Space_Station go.nasa.gov/2ACBws8
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How do you do an emergency eyewash aboard the @Space_Station? @Astro_Raja tries out the equipment: an elegantly simple modified set of swim goggles.
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Congrats to my students and colleagues at @MIT on their continued testing of our unmanned air vehicle capable of 5 days endurance, sized via gpkit.readthedocs.org. Super exciting progress. dvidshub.net/video/607846/mi…
#FOMO
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Climbing out of San Angelo, Matt and I got a light indicating our gear doors were not up and locked. Luckily we were in formation with @Astro_FarmerBob and @zenanaut, who confirmed we were all buttoned up. Great training and teamwork.
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Woody Hoburg retweeted
Last week, the Turtles went to Maine for some survival training. We learned how to build shelters, make fire, land navigate, acquire/prepare food, etc. It was also a great time for team bonding and team building! #newastronauts
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Beautiful launch this morning, @NASAInSight on the way to #Mars!
Check out these amazing photos from the #AtlasV #InSight launch this morning from SLC-3E at Vandenberg AFB!
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Here's a short video showing some of our training.
Have you wondered what our Astronaut Candidates have been up to since they arrived for training in August? The answer is a lot! Watch this video to get an inside look, then visit go.nasa.gov/2sOASQs to learn more about the candidates.
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Congratulations to my former student Scott Nill on passing his PhD thesis defense today!
It is a full house at Scott Nill's thesis defense. He is crushing it! @MITAeroAstro @Astro_Woody @lnietner @mitmeche @stemgemTech
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Happy #EarthDay2018. Lost Arrow Spire is my favorite feature in my favorite National Park. @YosemiteNPS
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