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Picture the Beautyof Technology

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Picture the Beautyof Technology , Picture the Beautyof Technology Editor’s Note: Dividing infor- colors, but it is much easier to see mation into disciplines often gives tiny differences among colors-for us a distorted and less than example, among different shades satisfying understanding of the of green. You can also see light in world. We may have an under- long (infrared) wavelengths that standing of one of the “laws of are invisible to humans. Why, you Scott Marrett and nature” or be able to recite how a can even look at a forest and tell Diane Fisher technology works. But we may not the lodgepole pines from the have actually integrated this cedars, the grand firs from the Sitka knowledge with our experience. spruce! This space-related activity You also carry an instrument integrates science and technology that lets you see through Earth’s with art. It gives students, parents, atmosphere as if it weren’teven and teachers the opportunity to use there. a technological concept as a theme for a work of art. This contest is sponsored by the Jet Propulsion Laboratory (JPL), California Institute of Technology, under contract to the National Aeronautics and Space Administration. It describes some of the advanced technologies to be flown and tested in space for the first time on the Earth Observing-] mission, managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. You can learn about this mission at http:// Figure I - EO-I Satellite eoI.gsfc.nasa.gov. This and other missions are also featured on The The energy to power your Space Place, JPL’sfun Web sitefor instruments comes from your children at http://spaceplaee.jpl. super-lightweight solar arrays that nasa.gov. convert the sun’s rays to electricity. And for making small corrections Put Yourself in Orbit to your orbit, you have a high-tech, pulsed plasma thruster with only Imagine you are a spacecraft two moving parts. By releasing orbiting Earth, more than700 very tiny pulses of gas, the thruster Scott Marrett isa consultant with kilometers (420 miles) up. You you a Market Evolution in Westlake Village, lets maintain very exact California, and Diane Fisheris a look down and see the beautiful orbit-very important, since you science and technology writerat Jet blues and browns and greens of the are formation flying with the Propulsion Luboratory, Pasadena,CA surface. What’s more, you carry Landsat 7 satellite. and the designerof The Space Place. several instruments that let you see The spacecraft you are imagin- Thanks also to Nancy Leon, educa- the world as humans have never ing yourself to be is called Earth tional outreach liaisonfor NASA’s seen it before. Observing- 1. or EO- I. EO-1 will New Millennium Program,of which You can see all the usual be launched in January 2000. Earth Observing 1 is part. December 1999 TECHNOLOGY AND CHILDREN 17 PICTURE THE BEAUTY OF TECHNOLOGY - the explanations that follow. We also give you hints about ways to artistically interpret some part of each technology. How does Earth look using this technologjr? How does space or life on Earth look? Is the technology used tosense color, light, shape, or image? You may take off from one of our hints, or better yet, create a personal artwork of your own interpretation. a Use imagination and stretch the boundaries of your creativ- ity-just like NASA's scien- tists have used their imagina- tions in developing these new Figure 2 - This image of the Freemont, California area was madefrom Landsat 7 technologies. Art is a very data. You can see the San Francisco Bay in the lower and left-hand sideof the personal form of expression, image. The patchwork of odd shapes south and west of the city is the San but you mayalso form a team Francisco Bay National Wildlife Refuge, which includea salt marsh, tidal to work together on the art. sloughs, mudflats,and salt ponds. a When you complete your project, use the form at the end What a view! What a ride! beautiful planet at once in exquisite of this article to submit your You see things from up there that detail, why not use that inspiration artwork to the New Millen- no one cansee from Earth, or even to create a work of art? nium Inspirations Program from a jet airplane. You are The New Millennium Inspira- coordinator. From these recording images of almost the tions Program challenges you to do entries, a panel of art and entire Earth's surface and sending just that! Create an original work science professionals will them back to mission control at of art that shows thespirit of select nine works, three ineach Goddard Space Flight Center in exploration and also expresses age category. The winning Greenbelt, Maryland. The images something about one or moreof entries will be displayed will be analyzed and compared EO- 1 's new technologies (which prominently on thecampus of with the images the Landsat 7 is we'll tell you more about in a the Jet Propulsion Laboratory taking to see how well your new minute). It can be a drawing, in Pasadena, California. technologies work. For this is the painting, sculpture, collage, or first time they have ever flown in anything you want. as long as you See the World through a Space- space. can show it to us on no larger than age Technology an 8-1/2 x 11 inch piece of paper. Here are some short descrip- Let the World See ThroughYour For example, if you do a big Eyes tions of eight of the advanced collage or a 3-D sculpture, you can technologies to be tested inspace If you tind it inspiring to think send us a photograph of it. on EO-1, along withhints about about space and spaceexploration, 0 Start by reading and learning how they might be represented ina and to imagine seeing our whole about EO- 1's technologies in work of art. 18 TECHNOLOGY AND CHILDREN December 1999 , I ...,'.? -, - CIyperspectral/Multispectral this technology combines a number Explanation: The EO-1 Imaging Spectrometer: of smaller elements (64) in a Carbon-Carbon Radiator will be Explanation : A spectrometer pattern to make up the whole used to help cool the electronics is an instrument that breakslight effect. Or, consider that its purpose inside the spacecraft. Radiators into its different colors (frequen- is communication. have previously been madeof aluminum. This new carbon- cies) and then precisely measures Atmospheric Corrector: those frequencies. The Hyper- carbon radiator material, made in a spectralNultispectra1 Imaging Explanation: Depending on honeycomb pattern, is stronger and Spectrometer will photograph how much water vapor and other lighter weight thanaluminum, and Earth from space. Previous aerosols (tiny particles of liquid) dissipates heat even better than missions have used spectrometers are in the air, Earth's atmosphere aluminum. to image various landscapes on scatters light and distorts images Artistic Hint:Consider that Earth, such as deserts, mountains, received by spacecraft taking this material is made in a repeating and oceans. EO- 1 's advanced photographs from Earth orbit. The honeycomb pattern for use as a spectrometer can not only detect Atmospheric Corrector continu- radiator. Even though apparently landscapes, but can also see tiny ously measures the amount of light and mostly hollow, itis still differences between similar distortion from water vapor and very strong. landscapes. For example, EO- 1 corrects the resulting image to Lightweight Flexible Solar will return images of forests that eliminate the distortion. It uses an Array: distinguish between different kinds advanced, electronic, wedge- of trees. shaped filter. Explanation: A spacecraft's solar array converts the sun's Artistic Hint:You could Artistic Hint: Distortion and energy to electrical power forthe photograph small differences clarity are thems of this technol- spacecraft. The Lightweight between natural thingson Earth. ogy. Images distorted by water Flexible Solar Array uses a new For example, you could photo- and/or water vapor might illustrate energy-capturing material for the graph a forest or small grove of this idea. solar cells that makes themlighter trees during different seasons. Or Enhanced FormutionFlying: and provides more power than you could photograph interesting previous materials. Also, the rocks with subtle differencesof Explanation: The EO- 1 hinges of the solar array are made color or texture. spacecraft will use advanced computer software to calculate of shape-memory alloys so the X-Band Phased Array Low-cost exactly where it is and where it panels can begently unfolded Antenna: should be at all times, and to plan without the use ofexploding bolts. Explanation: The Phased and carry outany needed correc- Artistic Hint: The sun's light Array Antenna is unlike the usual tions in its ortit, Thus, EO- 1 will and energy have inspired artists dish-type antennas that have been be able to maintain its position since the beginning of our species. used on spacecraft to send data and following the exact orbit of images back to Earth. This an- Landsat 7, but one minute behind. Pulsed Plasma Thruster: tenna is flat, with an array of64 Artistic Hint: This technology Explanation: The EO- 1 cylinder-shaped amplifiers that enables %para& objects to move in spacecraft must be able to make !irect the signal to Earthelectroni- precise formations, without human very small, precisecorrections in cally. The antenna has no moving operators. YOU could connect a its orbital speed and direction. The parts and is very lightweight. It series of Pjnw to create a pattern, Pulsed PlasmaThruster uses can send a large amountof data in and copy-~ the pnttern to indicate electricity to convert solid Teflon a very short time. movement inti)rmdon.
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