Thursday in Houston

So Thursday we attended a professional development workshop.  This was nice because there was a lot of information on the different opportunities for students and teachers at NASA.   I should give a plug for the Teaching From Space Website at this point.   The best place to click on it “get students involved” followed by your grade level.   I really like EarthKam which gives you photos taken from the International Space Station.   If you want to perform your own microgravity experiment, NASA has a 2.2 second drop tube you can use.  The experiment is called Wing or DIME depending on your grade level.   I remember a couple years ago, the Academy students were thinking of launching a Weather Balloon and NASA has a BalloonSAT program.

After our workshop, our NASA Mentor, CJ, took us on a tour of her lab.  Just outside of her lab in the Famous Building JSC Building 220 is the Vacuum Chamber A It is actually a US Historical Landmark.  They have been using it to test out the James Webb Telescope.  The photos on the NASA website are better than my photo.

This is the Biggest Vac Chamber they have!

This is the Biggest Vac Chamber they have!

CJ works on a small robot called Robonaut.   I was really amazed with the tour.   R2B is currently living on the International Space Station in the Destiny Module.  They are working on R2C, and yes, someday there will be an R2D2.    We got to see R2C, but all the photos included here are of R2B.   Not only is the strength of R2 amazing, but also the sensitivity.  It knows it if knocks into something and goes into safe mode.

The combination of strength, durability, and sensitivity is amazing.  All built by engineers in the US from NASA and General Motors.  I remember in St. Louis at the FIRST Robotics Competition being really impressed with ASIMO, which is made by Honda.  But I got the feeling that if ASIMO were to get slide tackled then he wouldn’t do to well.  And in a dark alley, I think I would rather have Robonaut watching my back over ASIMO.

BUA Group with Robonaut

BUA Group with Robonaut

Uh, Laurie, don't look behind you.....

Uh, Laurie, don't look behind you.....

He likes to shake hands and pose for the camera (R2, not me)

He likes to shake hands and pose for the camera (R2, not me)

BIG Muscles

BIG Muscles

Photos from Tuesday and Wednesday in Houston

Sorry for the week long hiatus.  I have a lot to write about from touring JSC and meeting Robonaut.  But first, I wanted to post all of the flight photos.  There are a lot of great photos.  If you need a high res photo, just drop me a line.

I should note that the photos with myself, Jim Berkman, and our NASA mentor CJ are from Tuesday, and the photos of Rose White and Laurie Glenn are from Wednesday!  We had fun!!!

Wednesday in Houston

It is midnight.  It worked.  I just finished spending 3 hours making a rough analysis of the data.  It actually worked.  I have a lot to say but it is late.

Laurie and Rose had an awesome flight today.  Although the video camera failed (probably because the team leader neglected to put fresh batteries in the camera), the GPS sensor worked.  I made a crude graph of the altitude data.  Here you can see the altitude as a function of time.

total flight altitude

Even cooler, if you do a quadratic fit on the parabolas, you get either plus or minus 16 feet/sec/sec which is half the acceleration due to gravity (which is what the pilot needs to achieve).   Way cool.

first four parabolas

zero g parabola

So many thanks to Laurie and Rose for gathering the GPS data.

I looked at the data from our low g accelerometer.  I don't trust the numbers, as the sensor was not well calibrated. But it does give a good sense of where the low and high g parts of the flight are.  But from the pendulum sensor during the last several parabolas, I was able to obtain the period and acceleration.  Even better, they comply with theory. Seeing this next graph at midnight.   Physics actually works.  This trip to Texas was worth it.

acceleration period rough data

So the first two data points (almost overlapping) are lunar gravity at about 1.8 m/s/s.  The next data point is Martian gravity at about 3.7 m/s/s.   Then one point of near Earth gravity at 10.3 m/s/s, followed by several points of hyper gravity ranging from 17 to 20 m/s/s.  As you can see from the above graph, there is a linear relationship between the acceleration due to gravity and the angular frequency squared of the pendulum.   Wow.  So cool.

A lot more to say about the personal experience, but that can wait until tomorrow.  There are photos on the web.  I will post them tomorrow night.  I will just add this one photo.  Go Bruins and Team 246!

Gary in zero g

Tuesday in Houston

They day started out with our daily briefing and then we received our anti-nausea medication.  It didn't help me.  As I was about to go out for my preflight briefing, and engineer found me and told me he was going to ground me if I couldn't show him the frequencies of the blue transmitter I was using with our WDSS.  So we went on board the airplane, I found the documentations and all was fine.  Next, the preflight briefing where we learned how to handle ourselves in the plane.Picture 066Picture 076Picture 087

We boarded the plane and had a seat in one of the several rows in the back of the plane.  Take-off was fine and didn't take long.  About 20 minutes after take-off we got out of our seats and set up our experiment.  We then braced ourselves for the first parabola.  The hypergravity wasn't a problem.  I grabbed a strap with both hands for the first microgravity arc.  But my feet were not tapped down.  Suddenly, I was upside down and I was doing a somersault near the top of the place.  I came back down a few seconds later and all was well.  But I think I paid for this 15 parabolas later.  We ran the experiment and it was amazing to watch the string pendulum floating in microgravity.  The experiment ran successfully.  However, the GPS sensor was unable to acquire a signal.  We gathered great video footage of the pendulum and all the sensors worked well.

I didn't find the hypergravity all that bad.  A lot of people would lie down in the hypergravity but I found kneeling was fine.  But the transition from hyper to microgravity did me in and I had breakfast for the second time.  But the Blue Suits were right there to help me out.  At that point I had a chance to watch the people in the plane floating up and down.  It was an amazing sight.

After we got down we tweaked the experiment and made some small updates.  We had an afternoon lecture from an engineer from the flight suit design section.  It was interesting to listen to the evolution of the flight suit.

Monday in Houston

We started out the day on Monday making all of the final adjustments to our experiment.  We added padding to the outside, added Velcro to hold everything down, and ran through the software.Picture 002

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After a group photo in front of the plane, we had our Test Readiness Review.  I gave a quick presentation on our experiment to a panel of 20 engineers.  Weighed our experiments and loaded them onto the airplane.  The cargo hold was padded everywhere with seats in the very back.  Our glove box was bolted to the floor of the plane which is a C9 which is a modified Boeing 727.   Here is the C9 which NASA owns,

Picture of NASA C9Picture of NASA C9

but we are flying on the Zero G Airplane Ride. This plane is not owned by NASA but by a private contractor. You can buy your own ride on the Zero G for $5000.  New glitch.  As I tested our our FlipCam.....it didn't work.

After loading our experiments

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we received our flight suits and learned move about the anti-motion sickness.  We finished the day a bit early.  So I went exploring and bought a new Flip Cam at Best Buy.  I also went to the mall and bought a Boston Bruins cap.

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That night we went to the Mission debriefing for STS-134.  This was the highlight of the entire trip.  It was held in the IMAX theator in Space Center Houston.  After a loooong line to get in (full of NASA families of the astronauts, flight crew, engineers, and NASA fans) we found choice seats.  Everyone stood up and cheered when Gabrielle Giffords came in smiling.  Commander Mark Kelly helped to pass out the awards to all of the NASA engineers who worked on the instruments for the flight.  The Astronauts from the flight also received their Flight Medals and showed pictures and a video from the flight.  The primary instrument they installed on the International Space Station was the Alpha Magnetic Spectrometer.  The AMS will detect cosmic rays and help search for antimatter and dark matter in the universe. Another interesting thing is that the shuttle left their robotic boom arm on the ISS. They tested some equipment for the Orion space program.

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The weekend in Houston

So we had the weekend off from our NASA work in Houston.  On Saturday, Catalina, Alejandro, Leonardo and I drive down to Galveston Island.  We spent most of the day at Moody Gardens, which is the equivalent of the Houston Science Museum.  We started out by watching a 3D IMAX movie where we saw the movie Dinosaurs Alive.  Leonardo was scared, and Alejandro has decided his second career (after an astronaut) is to be a paleontologist.  After that we toured the Rain forest Pyramid. We saw a rich variety of animals and fauna.  I liked the spider monkeys and macaws.

After a quick lunch we spent the early afternoon at the Moody Garden water park.  I enjoyed watching the boys splash in the wave pool.  This reminded me of my earlier blog posting where I mentioned that water wave speed depends on the depth of the water, and this is an excellent example of this phenomena.

After leaving Moody Gardens, we drove down to the old city of Galveston and toured the Galveston Railroad Museum.   They had two nice Steamers and several coaches and freight cars in various stages on reconstruction as Hurricane Ike hit them square on.  What I found most interesting was a traction engine which they had, and I have never seen one in such nice condition.  For those of you unfamiliar, a traction engine is steam powered and predated the farm tractor.  According to Alejandro a traction engine can not only plow the fields, but you thresh the corn and saw logs too.  At least this is what Trever does in the Railway Series.

On Sunday we went to the Kemah boardwalk.  We started out with a ride on the Boardwalk Beats, which is a large high speed boat.  We got very wet.  I was very impressed with the large size of the bow wave which trailed behind the boat.   Remember, a significant bow wave is produced by large fast objects!   After lunch, the boys played in the splashpad before settling in at Stingray Reef which is a mini-aquarium and a 'Shark and Stingray petting zoo.'  We fed the rays shrimp and played with them.

First Day in Houston

So we finished our first day.  Jim Berkman, Rose White, and I left the hotel at 7:15.  Missing was Laurie Glenn whose train from LA was delayed???  We drove to Johnson Space Center to the Giruth Conference Rooms. Once there, the first thing we saw were several heads of oxen on the walls.  As we checked in sans Laurie Glenn, we were informed that if she didn't make it in time for the physiological training, she wouldn't be able to fly with us.  Yikes!

We then listened to several introductory talks.  Then at 8:30 the two hour Physiological training began.  No sign of Ms. Glenn.  After 45 minutes learning about hypoxia, we began to learn about hyperventilation.  Still no Ms. Glenn.  We talked to the Flight Surgeon and he said that if she could make it to JSC before the end of his talk, then he would fill her in.  Otherwise, she couldn't fly.  I contemplated hyperventilating to delay his talk.  I realized this wouldn't work. A long discussion of bodily gasses.  We heard a long discussion of the inner ear.  10:20.  The door opens.  My head swings around.  I realize, I just did something you are not supposed to do on a reduced gravity flight, which is suddenly turn your head while standing up.  Ms. Glenn walks in.  She can fly!!!

So at 10:30 the Flight Surgeon gives Ms. Glenn the abbreviated version of the talk. He covered every slide (without the jokes, and I must admit, he was funny).  But it makes me think, why did I just sit through two hours physiological training if it could be done in under 30 minutes? Ah well.

A quick lunch at Lenny's sub shop and we drove to Ellington Field.  After a quick introduction of what not to do (AVOID the Flight Line), we started to work on our experiments.  The first thing to do was unpack.  Except they lost our experiment.  It was on the field....somewhere.  An hour later...Laurie found it sitting in a corner of the hanger.

So along with our NASA mentor CJ, we began to quickly assemble our experiment!  We finished.  All is well mechanically.  Except that the bluetooth connection to our WDSS (wireless accelerometer) kept cutting out.  So tonight I charged the battery up and it seems to work in the hotel room.  Unless there is radio interference......we won't know until Monday morning.

While I was at NASA-JSC, Catalina took the boys to Space Center Houston.  They had an exciting time.  An entry from Alejandro's journal: We went to  Johnson Space Center in Houston, TX. When we went in we saw a big Jungle Gym.  We went on a tour bus which took us to the Apollo Mission Control Room.  When we left we went to a circle of oak trees which was planted to remember the Challenger Astronauts.  We went to Rocket Park where we saw Apollo 17.

Houston, Here we come!

Wow, we are in Houston!  I caught an early flight on standby so I hope to get some work in.  The past week was very busy, preparing all of the software and doing some last minute analysis and stress tests for the TEDP (Test Equipment Data Package).   I was able to do most of the stress tests last week in my basement using the Vernier WDSS as a force sensor.

WDSS used for stress analysis

WDSS used for stress analysis

Worked great!  I needed an extra hand so Leonardo helped me to do some of these stress tests.  Strong little guy!

Leonardo Does a Stress Test

Leonardo Does a Stress Test

However, for one of the tests I needed to apply 35 pounds of force.  I was at a loss since the WDSS peaks out at 12.5 pounds.  As I was reading Leonardo a bedtime story it suddenly occurred to me that I could make a quick trick brick stack.  If you don’t remember what that it, you might need to go back and read Fox in Sox by Dr. Seuss.

Fox In Sox

Fox In Sox

It turns out that your average red clay brick weighs 5 pounds (on Earth, not on a Reduced Gravity Flight) and I was able to make my own QuickTrickBrickStack.   Thanks for the idea Leonardo!

Quick Trick Brick Stack

Quick Trick Brick Stack

Airport security had a field day with my carry-on luggage.  Inventory includes the SONY HandyCam, The Cannon Camera, Chargers for laptop, phones, internet cables, Vernier LabPro, accelerometers, Wireless Dynamic System Sensors, GPS sensors, Bluetooth adaptors, USB keys, digital picture frames, not to mention all of the banners and BU stickers.

Stay tuned for updates from Houston!

Our NASA Experiment is finished!

So this has been a busy week for finishing up our NASA experiment.  The BUA FIRST Robotics Team has been busy building an experiment which will fly on the NASA vomit comet during the last week of June.  Many thanks to Nima, Bard, Borg, Perry and Matt for all of their hard work on this project for the past several weeks. Scroll to the end of this entry if you want to see the experiment running in our lab!

The parabola for reduced (and hyper) gravity

The parabola for reduced (and hyper) gravity

We were very excited when we were chosen for this program!!  Our project consists of a simple pendulum, and we will take measurement of how the pendulum will behave in different amounts of gravity.

The experiment is built from C-channel by AndyMark, Tetrix by Pitsco, and sensors from Vernier.  We will be using Vernier's LoggerPro to collection acceleration and tension data.   The pendulum bob itself is a wireless accelerometer from Vernier.

Nima and Matt build the experiment!

Nima and Matt build the experiment!

This year, four Boston University Academy educators will be one of 14 teams that will venture to NASA Johnson Space Center‘s Ellington Field in Houston to conduct their experiments aboard the agency’s “Weightless Wonder” aircraft.

Each year, the Reduced Gravity Education Flight Program (RGEFP) gives undergraduate students and K-12 educators the opportunity to propose, build and fly a reduced gravity experiment. The teams will perform the experiments aboard a microgravity aircraft, which produces weightlessness 18 to 25 seconds at a time by executing a series of about 30 parabolas – a steep climb followed by a free fall – over the Gulf of Mexico. During the free falls, the teachers will be able to gather data in the unique environment and experience near-weightlessness.

Vernier Sensor as a Pendulum Bob

Vernier Sensor as a Pendulum Bob

Boston University Academy’s opportunity to participate is the result of the hard work and commitment of Gary Garber the Principal Investigator along with James Berkman, Rosemary White, and Laurie Glenn. The educators were selected from more than 40 proposals based on scientific merit and educational outreach potential. They have put many hours into researching and building their experiment. They are also taking time to reach out to other educators, students and the community to share their unique experiences and discoveries.

Completed Frame made from AndyMark C-channel

Completed Frame made from AndyMark C-channel

The Boston University Academy team will arrive at Ellington Field, where astronauts do their T-38 training, on June 23rd. They will then go through physiological training and fly their experiment during the week of June 27 -30, 2011.   A common high school physics experiment is to have students explore the effects that different variables, such as mass and length, will have on the period of a simple pendulum.  Although the period of a pendulum also depends on the acceleration due to gravity, changing this variable is not easily accomplished in the classroom.  By setting a pendulum in motion at various gravitational accelerations on a Reduced Gravity Education Flight, one can obtain a set of data for students to verify the theoretical dependence of the period of a pendulum on gravity.  A Vernier Wireless Dynamic Sensor System will be used as a pendulum bob to obtain tension and acceleration data during the flight.  The information recorded by the dynamic sensor system will provide students with more detailed data for more in-depth analysis of the pendulum dynamics.  By obtaining video footage of the experiment with accompanying measurements of acceleration and tension, students in the classroom can use image analysis to verify a standard textbook relationship, or even derive the relationship by observing the video footage.  The experimental package is being built by members of the Boston University FIRST robotics team.  Following their flight, the team will evaluate findings, draw conclusions and provide the results to NASA.

Watch our pendulum in action!

Pendulum in action!

LEGO Engineering Symposium

It has been a cool three days at Tufts University with the LEGO Engineering Symposium at the CEEO.   We saw the new edition of Lab View and Andy Bell introduced some new LEGO Green Challenge educational products.  If you are looking for an off-season FLL activity for your students, this would be great and the mat fits onto an FLL table.

Check out the Lab View Education Site.  I attended one workshop on the LabView Education Edition.  I did my first LabView programming in several years and we made a simple line NXT  Robot with line tracker and motion sensor.  The robots also had a motion sensor to simulate autonomous driving on a highway where the cars need a separation distance.  I am excited to have the BUA robotics team use LabView across our platforms.

My lab partner was Steve Hassenplug, who is an expert in building things out of LEGOS.  Thinking of the Wizard Chess from Harry Potter.  Alejandro asked me the other day about building a big chess set out of LEGOS.  This guy has actually done it, and the chess pieces are robots that actually move!       Monster Chess Site

Another workshop I attended was on creating Stop Action Animation SAM  SAM Animation Site.  I made a simple Stop Action Movie of a Skateboard.    I see SAM useful on many levels.  With the robots team we can use it to plan and explain our game strategy.  For my physics class, I could use it to create prelab explanations that demonstrate instead of explaining with words.  Students doing postlab analysis could use SAM to show what happened in the experiment.  Or animations could be created to explain what happened in the experiment.  This will really enhance the online digital Science 2.0 lab notebook.  We also took some video footage from our camera phone and imported it into SAM.   It needs to be a small clip otherwise there are too many frames.

Message of the day.   "Learn from your failures!"