Showing posts with label zero-g. Show all posts
Showing posts with label zero-g. Show all posts

Saturday, July 16, 2011

I sit here writing these words on the plane ride from Houston, back to Colorado.  As we take off, I can’t help but smirk, thinking about the last time I was on a plane. I feel the increased g’s as we climb through the sky, awaiting the quick transition to zero-g, but it doesn’t come. I smirk again, realizing that no plane ride will ever be quite like my experience aboard the “Weightless Wonder.”

I will preface my story by saying that the “Vomit Comet” did indeed get the best of me. Despite my best efforts, my breakfast was intent on leaving my stomach. Thankfully, that waited until after the final parabola.


The morning of our flight, we were given a combination of medications specially designed to help with motion sickness and give us the energy necessary for the flight. Upon take off, most everyone’s nerves were at ease, most likely thanks to the medication. After reaching 10,000 feet, we were free to tend to our experiments and prepare them for the journey into the reduced gravity environment.

We started with three Martian parabolas which gave us about 1/3 of earth’s gravity. As our first introduction to reduced gravity, it was quite strange. I could feel the existence of gravity, but I also felt more capable - I felt that I had instantly gained abilities that were new to me. I turned to our computer to look at our data, but I couldn’t help bouncing up and down slightly to experience this strange environment as best I could (even with the quick 40 second intervals).

Three lunar parabolas came next. For me, the difference between lunar and Martian parabolas was  hard to identify, probably because both environments were equally new to me. Again, I couldn't help bouncing in place, with images of the moon going by in my mind.

Next up was zero gravity, with a total of 28 parabolas remaining. I took the first few parabolas easy, opting to stay on the ground and just get used to the environment. The 1.8 g’s acting on my body felt more intense during this fist zero-g parabola. I patiently awaited the transition, not knowing what to expect. I hear the plane’s engines cut back, feel the g’s quickly disappearing, and in about three seconds, I’m accidentally floating.

Since I wanted to stay on the ground, my first instinct was to hold on tight to the strap on the ground. Once the zero gravity hit, the force with which I was holding the strap caused me to start rolling on my side. I felt very out of control, feeling like I was falling, but I didn’t know where. I sneaked a peak down the plane, and saw a very strange sight. To me, I felt like I was looking down, with people floating below me. I looked up, and it felt down. I looked down, and it felt down. It’s one thing to say, “There is no up in space,” but it really is something else to truly know what that phrase means (sort of…).

The next few parabolas hit and I began to understand how to control myself better. Unfortunately this increase in control was beginning to feel more necessary than ever – my head was feeling quite strange. I had a feeling I knew what was coming, so I identified the location of my government-issued sickness bags. I started sweating, frustrated with myself for not taking off my flight suit down to my waist. I was sweating, feeling a little queasy, and floating at the same time. During one of the hypergravity sections of the flight, I decided it was time and grabbed my sickness bag. Within seconds, I had hands on me, asking me if I was alright. The flight surgeon on our flight came over to me, asking how I was feeling. I sat up straight for a few parabolas, missing the zero-g experience while they pinned me down to the plane’s “floor.” A few people helped me take off my flight suit down to the waist to help cool me down.

I decided to sit out a few more parabolas and sit in the seats in the back. I was handed a cold towel and a bottle of water, which seemed to help immediately. The flight surgeon helped by fanning me with air, and gave me a lifesaver mint. It all helped.

As I started feeling better, the environment around me started to come back into focus. Sitting in the front row of the seats, I had a complete view of the entire plane. It felt surreal looking down the plane, seeing flips (some on purpose, but most on accident), and watching the ground transition from below me, to who-knows-where.

By the time we had a break in the parabolas, I decided I was feeling well enough to rejoin my team. I took the first few parabolas slow, only rising slightly from my seated position against the plane's wall. I was feeling confident in my ability to not lose my breakfast, but I was aware of the fact that my head did not think that the environment was normal.

Eventually, I was able to check on our experiment, help adjusted a moved-camera, and check on the data. For the last few parabolas, I brought out the slinky, handing Sara the other end. Nathan filmed us as we held the slinky between us, seeing the straight line it was forming across our structure (an odd sight to see).

I pulled out a clear bottle full of about thirty jelly beans on the last parabola, playing with their movement in the microgravity environment.

Thirty-four parabolas sounds like a lot, but they went by extremely fast. We leveled out, stored items that needed to be stored, and returned to our seats. Upon sitting, my held still did not feel right. I, again, identified my sickness bag and brought it out. There went my breakfast.

About thirty seconds later, I felt normal, as if the sickness was never there, thankful for the opportunity to experience both the “Weightless Wonder” as well as the “Vomit Comet” that day.


Do I wish I hadn’t been sick? Sure – but the times in between were seconds of my life that I will not forget. As the plane I am currently sitting on prepares to land, I cannot help but imagine it without the rows of seats ahead of me, white padding on the walls, and a few dozen people “below” me floating throughout the cabin.

(Images courtesy of NASA)

Posted by Kyle Stephens

Wednesday, July 13, 2011

Kyle, Sara, and Nathan flew today. It was pretty remarkable. We did not have the time to write the complete update that this day deserves, so please wait a few days until we find the time.

Tomorrow is our last day in Houston, with a tour of JSC being the only event on our schedule.

Posted by Kyle Stephens

Tuesday, July 12, 2011

Today, July 12, 2011, was the day the first four members of our team had their first (and for CJ, sixth) experience of microgravity.  But before the flight was able to happen, many preparatory things had to occur.  When we arrived at Ellington Field, we first had a short morning meeting followed by a briefing from our flight surgeon who would later distribute our anti-motion sickness medication.  There was some anxiety among the group when some lost tools caused a short delay, but both tools were shortly found and we continued on as scheduled.  After receiving our medications, today’s fliers boarded the plane in a single file line with cameras flashing all the way.  


We took our seats in the back of the plane and as with every commercial flight, we were lectured on the “safety features of this aircraft” including oxygen, life vests, and the over-wing emergency exit doors (we were even asked to turn off our cell phones!).  From take off to ten thousand feet, all was as a normal commercial airline flight but then the 10 minute countdown began.

That is ten minutes to the beginning of the first parabola.  All the teams went to their respective experiments and began making the final preparations before the big moment.  Kevin started up the computer and data collection while Sean and CJ attached two cameras to the payload.  Down to four minutes now.  Our team was ready to go and all took the ideal position on the floor that best reduced the possibility of motion sickness.  Only one minute to go.  All the pickles (a nickname for the participants because of the dark green flight suits we wear) were lying down on the floor holding on to straps and handles in preparation.  Thirty seconds left, the engines rev, and the pilots start the first upward turn.  Hypergravity, 1.8g’s, and the feeling of almost double one’s body weight bore down on our team members. Seconds left, the weight eases, the engines slow, and poof.

Tory, Sean, Kevin, and CJ all floated from the floor as the term “weight” became meaningless.  Nervous giggles were had by all as our minds and bodies tried to make sense of the new environment, but by the second parabola, excited talk and laughter was heard throughout the cabin.  Everyone was so enthralled with the feeling of weightlessness, we almost forgot about our experiment!  On our first turn, the astronaut candidate on the flight asked about our setup and found it very intriguing.  Parabola 22 marked the time we could start our outreach experiments (a.k.a. gyroscopes, floating green paratrooper men, and spinning patches).  During parabolas 29-31, we experienced Lunar gravity (1/6 that of Earth) and Martian (Mars) gravity (1/3 Earth’s) on parabolas 32-34.  When the pilots pulled out of parabola 34 applause was heard throughout the plane as we all cheered the success our first microgravity flight.


Upon reviewing the data collected, we found results that were not exactly as predicted. The liquid lens did not form the ideal “perfect” shape we expected, but we believe we have found the problem and hope tomorrow’s group will see the results as predicted. Despite his best efforts and the effects of the medications, Kevin unfortunately succumbed to motion sickness, but all four of us returned to terra-firma as veterans of microgravity.

Articles on both Arizona teams were published today in the Arizona Daily Star as well as University of Arizona News.  Links to the articles are below.

AZ Daily Star (We made the front page!)
UA News

Posted by Sean Gellenbeck

 
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