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Show 20 Hilltop Times July 3, 1996 PREE OUet About Fireworks Fun Facts This Tfta&U (NAPS) summer, millions of people will turn out for some of the season's 1 1 00 621 Art 2WW' most exciting spectator -- events fireworks displays. Here are some fun and fascinating facts that will help you appreciate the spectacular display you see this year. Fireworks operate by controlled combustion. How the pyrotechnician wants a particular firework to per- form determines which substances are used and how they are packed into the firework casing. Black powder, or gunpowder, is the basic ingredient used in fireworks. When it is ignited, it creates volumes of gas which can hurl an aerial "shell" hundreds of feet in the air or push a pinwheel around in circles. To make the loud "booms," a material called flash powder is used. This substance is the prime ingredient in firecrackers and the somewhat larger g salutes (the cylinders often included in aerial fireworks). To launch aerial shells, g a mortar (a tube closed at one end) must be lowered into the ground to act as a cannon. In this way, the pressure of the explosion and the expanding gasses trapped behind the shell thrusts it noise-makin- 4 '96 B2300 SEm . Stripe AC $32923,331 32 City Child Rear Door Locks 39 Hwy. MPG LEASE FOR '96 626 5 Speed Dual Air Bags $1000 BELOW INVOICE 5 to choose from lii Fold down 6040 Rear Seat anniver- sary in 1986. The production required an estimated 220 miles of wires; approximately 22,000 aerial fireworks; 777,000 pounds of mortar tubes (through which sky rockets and aerial bombs were launched); 30,000 pounds of equipment; and a staff of at least 100 pyrotechnicians on the dis- site to produce the plays. The invention of the first fireworks is tradition- ally credited to the Chi- nese, who discovered gun- powder more than a thousand years ago. The powder still used today was rolled in paper tubes or bamboo cases and ignited. The Chinese were convinced the noise from the explosion would scare away evil spirits. Fireworks made their way to Europe in the 13th century, and over the next several hundred years their popularity grew and grew. The displays became more and more extravagant as the years passed, but the technology remained basically the same. To this day, the same principles apply. The earliest settlers brought their love of fireworks to this country. The fascination with the noise and color of fireworks did not weaken with the passage of time. By the time of the American Revo- lution, fireworks had long played a part in celebrat- ing important events. It was natural, then, that John Adams should think of fireworks when independence was declared. He wrote in a letter to his wife that this most memorable day ought to be celebrated with "illuminations" from this time forward forevermore. ffe 51439 $209f or $1 6,488 PURCHASE m Charcoal or iron burn with a brilliant orange, strontium salts produce a beautiful red and barium nitrate gives off a bright green. Blue is the most difficult color to make, and the search for a chemical Perhaps one of the most memorable fireworks displays was the "Statue of Liberty Centennial Fireworks Spectacular," a dazzling display created to honor the Child Rear Door Locks LEASE FOR s1 84f or s 12,000 high into the sky. Chemicals which burn easily and give off bright, distinct colors provide the spectacular visual effects associated with fireworks. compound which will produce a better, darker hue continues even now. DX C:: 51539 95 MAZDA B2300 51482 PURCHASE 96 PROTEGE DX Side Impact Beams yi TWCa b Pkg. $199roR$11,925 PURCHASE Dual Air Bags 4 LEASE FOR 51520 5 Speed K Alloy Wheels Cloth Trim Redesigned & LEASE FOR close-fittin- I statue's 100th PURCHASE m fifth STARTING AT $H 4,260 i 'Price plus tax & ic. after rebateincentive if any. plus freight. t Lease pmt. plus tax rebateincentive may not apply. All leases - Aquisition fee, 1st payment, ic. fees tease signing, pmts. tax. O. A.C. 843 W. RIVERPALE RD., OGDEN & You Don't Have To Stk. 51297 security deposit due 621-- 1 at 100 Dress Up For I mmmimm |