largest human calorimeter under construction BELTSVILLE, Md. - The mystery of why some people get fat while others do not on similar amounts of food and exercise may be solved by a new live-in calorie counter being built here by U.S. Department of Agriculture scientists. W Wickes Lumber youb oHy^JJwDSMC fISTEEL ROOFING & SIDING 36" actual coverage Galvanized finish is corrosion and weather-resistant Lengths available to most of your farm construction 9.55 Galvanized 12.90 White 11.48 Red 11.48 Brown 11.48 Tan Custom length special order steel also available in galvanized, white red, tan brown, gold blue, avocado & black (Approx 3 week Del Special order prices slightly higher) rtilglll Piillillimimniimiimi 1 H mini tniiti mill' | I : ii lliillm *l46s°° Jjiiftji s s9Bo°° *3soo°° THE LINCOLNSHIRE 48'x 48' Machinery Storage Building • 14' sidawail • Optional • ft • 24' and door additions s 6977°<L Wickes Lumber... Your Best Choice! mjp Prices good at the following location only: va Mj|e North £ast Qf EPHRATA( PA . on Rt . 272 ▼ v < PH: 717-733-6521 or Lane. 717-394-9325 WlckeS Hours: Mon , Thurs., Fri. BAM -8 PM; I l imhar 'W'T Tues., Wed. 8 AM - 5:30 PM; Sat 8 AM - 3 PM I—Ml lIUCI C.E. Bodwell, research chemist for USDA’s Agricultural Research Service, says construction of the new calorie counter, known as a human calorimeter, was prompted by the need to know how much energy is in foods and how people make use of this energy. 12’ 10’ 16.75 14.35 11.95 22.00 19.40 16.20 CLOSEOUT SPECIALS 20.11 17.27 14.42 20.11 17.27 14.42 20.11 THE SOUTH FORK 15-6"x32' Loafing Shed • Optional 1611 additions Package THE WINCHESTER 40 x 48' Machinery Storage Building • 14’ aidawall • 18' and door Package THE PENDLETON 32x32' Multi-Purpose Building • 12* aidawall • 14’ and door Package 16’ 14’ 19.25 25.90 23.05 4x6 23.05 6x6 • Optional 8 ft additions • Optional 8 ft additions Bodwell, who heads the research agency’s Protein Nutrition Laboratory, says “no one really knows how much food a woman or a man really requires fot today’s modern, take-the-elevator, watch it-on-television living.” The calorin 3ter looks much like PRICES GOOD THRU JUNE 16 TREATED TIMBERS The perfect choice for farm buildings! Economical treated boards can be stained, painted or allowed to weather naturally. Durable... creates a safe guard against termite damage and decay. 12’ 14’ ’IZ69 $ 10.99 *16.95 *20.59 I fersotHHy Plus long-Uisfing Protection! THE SHENANDOAH 42'x 48' Machinery Storage Building • 14’ sidewall • Optional 6 ft. • 20' end door additions *6288°?,, *4329°° seAOQOO ■w M Package a large, white walk-in refrigerator with two small windows. But it is, in fact, the largest, most sophisticated chamber to measure human metabolism in the United States, Bodwell says. Bodwell says the new Beltsville calorimeter will be the first room sized unit in the United States to combine direct and indirect 16’ 18’ 20’ *14.99 *18.49 *20.59 *29.95 *23.49 *32.95 THE SHERIDAN 30x32' Multi-Purpose Building 10' >1 dewall 10' end door 900 Package THE REMINGTON 36 x 40' Multi-Purpose Building • 12’ sidewall • 16' and door Package THE BUCKINGHAM 32x32' Horse Bam • 12' tidawtll • S stall! Lancaster Farming, Saturday, June 2,1984—81 S 24’ 22' *41.19 *44.39 • Optional 811 additions • Optional 6 ft additions Li ti i i * Liquid Manure Pumps 'll I I 1 1 • ELECTROMIX w '“ r w l - l “ r • Barn Cleaner Chains ||£ AGRI UO SYSTEMS 800-222-2948 1301-398-2948) local calorimetry to measure energy produced by metabolizing food in the human body. Sensors in the walls and in the air flowing out of the calorimeter will provide the direct measurements of heat given off through the skin of the person inside. Indirect calorimetry will measure the normal decrease in oxygen and increase in carbon dioxide in the air caused by breathing, and the amount of urea in waste products. Bodwell says measurements will then be used to calculate the amount of food or body tissue used to produce heat. Ideally, he says, the direct and indirect methods should agree closely. To gather all this data, a sleek, gray computer will continuously monitor over 16,000 temperature sensors imbedded in the interior walls of the calorimeter. Another instrument under the computer’s control, a mass spectrometer, will constantly compare the per centages of oxygen, nitrogen and carbon dioxide in the air entering the chamber and in the air coming out. On the outside, the calorimeter may resemble a refrigerator, but it’s rather homelike on the inside, Bodwell says. The unit is com fortably heated and well lighted. A volunteer may bring along books, magazines and similar material. But researchers won’t permit television sets inside because of the heat they produce. Bodwell says clothing and fur nishings in the chamber have to be lightweight to avoid blocking heat radiating from a person’s skin. According to Bodwell, detecting the heat given off by an individual will pose no problem to the chamber’s sensitive equipment. Designed to measure tem perature changes in the air of as little as one thousandth of a degree, the calorimeter will easily monitor the 1,600 to 2,400 calories per day an average size adult expends. That amount of heat can bring 90-135 cups of water to a boil. Volunteers will stay in the chamber from two days to two weeks depending on what foods and exercise patterns researchers are studying. Living conditions in the chamber will be as close to normal as possible, Bodwell says. Toy making workshop scheduled CHESTER COUNTY - Would you like to make inexpensive educational toys for your children? The Penn State Cooperative Exten sion Service of Chester County is sponsoring a workshop for people who would like to make toys for children ages two through six years. You will make a toy to take home and leam about many more toys to make at home. If you have made a toy for your child, please bring it along to share with others. The workshop will be held Monday, June 4th from 7 to 9 p.m. at the Chester County Cooperative Extension Service, 235 W. Market Street, West Chester. Call 696-3500 to reserve a spot. Preregistration is requested. A small fee is required. • Bedding Choppers • Silage Carts • Manure Tanks UIIG Available From GRAHAM’S DAIRY SUPPLY 412-8344162
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