Curiosity, Ingenuity and Styrofoam Science
Tucked into the news of the day, yesterday, was this small item about two MIT students who managed to get photos--surprisingly good photos-- of the curvature of the Earth and the blackness of space for a whopping total of $148. The high-tech equipment involved in this research project included a small digital camera, a cell phone (with GPS), a styrofoam cooler, standard-issue athletic hand-warmers, a home-made parachute, and a mail-order weather balloon.
To accomplish this bit of amateur astronomy--or at least atmospheric research--the students, Oliver Yeh and Justin Lee, taped the camera inside the cooler (with a lens-sized cut-out in its side), along with the cell phone so they could locate the cooler after the fact. They taped the hand-warmers to the phone and camera batteries to keep them from freezing in the minus-40 degree temperatures they expected to find at altitude, programmed the camera to take images every five seconds using open-source Canon software, and then attached both a helium weather balloon and a small parachute to the top of the cooler. When the balloon reached a high enough altitude, they calculated, it would burst, allowing the package to descend under the parachute. Yeh and Lee also launched their experiment far west of Boston to try to insure that it landed before winds carried it over the Atlantic Ocean.
Roughly five hours after launch, the package descended into a construction site outside of Worcester, Massachusetts. (You can see some of the photos from their experiment here.)
Personally, I like the caper on a whole lot of levels. For one thing, it offers a powerful counter-argument to anyone who says today's computer-game-raised generation has lost the hands-on, tinkering sense of building and inventing things that allowed previous generations to achieve breakthroughs like the electric light bulb, the Wright Whirlwind engine, transistor radios and space travel. Taping a camera inside a styrofoam cooler under a balloon is such a quintessentially backyard creative scheme that I can easily imagine Calvin (of Hobbes fame) coming up with it, although his version probably wouldn't have worked out half as well. The inventive future of the world is clearly still in good hands, as long as there are students taping cameras inside of styrofoam coolers and sending them into the stratosphere.
The experiment also was a refreshing exhibit of open-ended curiosity, a quality sorely lacking in many overly goal-oriented students, as well as in many adults. Many of the NASA researchers I've interviewed over the years have said that the biggest breakthroughs tended to come not from carefully planned, narrow investigations, but from a scientist or engineer cocking their head one day and saying, "I wonder what would happen if ..."
Indeed, as a recent article in The Economist pointed out, one of the most famous and significant photos ever taken from the Hubble Space Telescope was the result of just such a moment. In 1995, Robert Williams, who was the director of the Space Telescope Science Institute at the time, was allocated 10 whole days of research time on the Hubble. Scientists wait years for a slot on the Hubble. So the gift of a research window is not to be squandered lightly. But instead of a series of narrow investigations, testing various hypotheses he might have had, Williams chose instead to pursue a single, open-ended question. "I wonder what would happen if ..." he asked, "we turned the telescope for 10 whole days on a typical area of space." Nothing outstanding, you understand. Just an average neighborhood in Ursa Major. Without any preconceived ideas, Williams gave his entire window over to collecting light from of an area so small that only about 20 stars from the Milky Way were visible in it.
Ten days later, the results of Williams' curiosity rocked the astronomy world. The "Hubble Deep Field" image that emerged changed many scientists' view of the universe. In that tiny area, astronomers counted not just hundreds or thousands of stars, but thousands of galaxies, showing the cosmos to be fare more uniform, and far more populated, than they had previously imagined.
"I wonder what would happen if..." is a risky research line to pursue, of course, because the answer might be, "nothing." And both focused research and "big science" projects have their place, as well. After all, it might be possible to get a Canon SureShot into space for $148, but you can't get an observatory like the Hubble launched for that amount.
(A side note on observatories, here--one of the most amusing parts of the Economist article was its listing, totally deadpan, of two other land-based telescope projects currently under consideration. The European Southern Observatory, it reported, was considering a proposal for the European "Extremely Large Telescope," after rejecting a bigger and more expensive model called the "Overwhelmingly Large Telescope." The old Monty Python gang could have had a field day with that, without fictionalizing anything.)
But regardless of the platform, that willingness to take a flyer on a nagging, curious thought or idea, whether it's about what might emerge with 10 days of telescope exposure, or whether it's possible to get images of Earth with a helium balloon and a styrofoam cooler, is part of what's separated every great inventor and entrepreneur from the rest of the pack. Having the courage to take a professional risk is important, even in science. It's also hard to do, and sometimes hard to get funding for--an issue the Astronomical Union also addressed at a recent meeting. "High-risk, high-reward projects require hard decisions that are best made by individuals, not committees," The Economist quoted Williams as arguing, in a debate over changing the current research approval and funding processes at large observatories.
But in an era where research funding can tend to favor limited and safe investigations over daring ideas (as this New York Times article on cancer research also argued), innovative, energetic, insatiably curious researchers like the young Oliver Yeh--whose friends say he's constantly coming up with seemingly outlandish "what if..." ideas to test--are all the more valuable.
The International Astronomical Union is currently celebrating the International Year of Astronomy, in honor of the 400th anniversary of Galileo Gallilei's telescope and Joseph Kepler's orbital discoveries. At recent international meeting highlighting that celebration, The Economist reported that Simon White, of the Max Planck Institute for Astrophysics, expressed his concern about the current focus on large-scale research projects. In previous years, White said, scientific progress usually came from brilliant individuals formulating and testing hypotheses using data accumulated by relatively modest means.
I don't think a few photos from the edge of space qualify as great scientific progress, but you never know where ideas lead. And you can't argue the "relatively modest means" quality of a styrofoam cooler. So in some ways, Oliver Yeh and Justin Lee's experiment is a perfect mascot for this quadricennial Year of Astronomy. Small science and modest means, mixed with a driving curiosity and courage to explore "what if" ... even if it meant failure, in the end. Galileo himself might have been proud.