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 EMS Star Of Life Pin, 1" die struck enameled gold plated 3-dimensiona Gift Boxed US $8.00 
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 8" REFLECTIVE STAR OF LIFE - BLUE/BLACK/SILVER MTR71-407 US $7.99
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 8" REFLECTIVE STAR OF LIFE - BLUE/GOLD/ WHITE MTR71-408 US $7.99
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 6 3/4" REFLECTIVE STAR OF LIFE - GREY/ WHITE/BLUE MT71-405 US $7.99
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 3" STAR OF LIFE - BLUE/WHITE/GOLD MT73-414 US $4.74
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 3" STAR OF LIFE - LIGHT BLUE/SILVER/WHITE MT73-407 US $4.74
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 3" STAR OF LIFE EMT - BLUE/WHITE/RED MT73-419 US $4.74
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 3" STAR OF LIFE - BLUE/BLACK/GOLD MT73-410 US $4.74
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 3" REFLECTIVE STAR OF LIFE - BLUE/GOLD/WHITE MTR73-404 US $4.74
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 3" STAR OF LIFE - BLUE/GOLD/WHITE MT73-408 US $4.74
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 3" STAR OF LIFE - BLUE/WHITE/GOLD MT73-411 US $4.74
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 3" REFLECTIVE STAR OF LIFE - BLUE/BLACK/SILVER MTR73-405 US $4.74
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 3" STAR OF LIFE - BLUE/BLACK/SILVER MT73-412 US $4.74
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 8" STAR OF LIFE - BLUE/GOLD/WHITE MT71-408 US $6.99
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 5 3/4" STAR OF LIFE - BLUE/WHITE/WHITE MT71-413 US $6.99
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 8" STAR OF LIFE - BLUE/BLACK/SILVER MT71-409 US $6.99
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 8" STAR OF LIFE - LIGHT BLUE/WHITE/SILVER MT71-410 US $6.99
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 STAR OF LIFE WITH DIAMOND PLATE BACK GROUND US $3.45
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 STAR OF LIFE IN A MALTESE CROSS WITH FLAG BACK GROUND US $3.45
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 Reflexite Helmet Decal Star of Life Blue Reflextive US $7.50
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 STAR OF LIFE WITH DIAMOND PLATE BACK GROUND REFLEXTIVE US $4.95
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 STAR OF LIFE INSIDE A MALTESE CROSS REFLEXTIVE DECAL US $4.95
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 Star of Life EMS Vinyl Decal Sticker HIGH QUALITY US $4.99
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 Custom Lanyard ID Holder Keys Paramedic Star of Life US $7.99
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 Reflective Fire Ambulance Star of Life - 17" US $29.00
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 EMT/ EMS Hat Hi Viz Hi Vis Star of Life Safety Yellow US $12.00
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 E.M.S. RESCUE BAG w. STAR OF LIFE & ADJ SHOULDER STRAP US $29.99
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 EMT / EMS Flexfit Ball Cap Hat Low profile Star of Life US $16.00
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 EMT / EMS Cap Hat Low profile Star of Life Navy Blue US $12.00
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 E.M.S. TRAUMA BAG w. STAR OF LIFE & HANDLE GRIP STRAP US $34.99
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 MEDICAL RESCUE RESPONSE BAG w.STAR OF LIFE & ADJ STRAP US $37.99
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 Emergency Medical Technician Arm Patch 4" EMT Star Life US $2.99
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-EMT US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-FFEMT US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-FFEMT-W US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-FIRST US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-G US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-PARAMEDIC US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-R US $12.95
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 Star Of Life Tetrahedron Fire Helmet Decals (set of 8) Item: SL-Y US $12.95
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 EMT STAR OF LIFE HOODIE PULLOVER EMT NAVY SWEATSHIRT MD US $26.99
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 EMT STAR OF LIFE HOODIE PULLOVER EMT NAVY SWEATSHIRT LG US $26.99
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 EMT STAR OF LIFE HOODIE PULLOVER EMT NAVY SWEATSHIRT SM US $26.99
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 EMT STAR OF LIFE HOODIE PULLOVER EMT NAVY SWEATSHIRT XL US $26.99
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 EMS Gear Bag w/ Star of Life US $54.99
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 Emergency Medical Services Arm Patch 4" EMS Star Life US $2.99
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 EMT EMS 3" Chest Patch Star Of Life Blue Gold & White US $2.49
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 Star of Life Circle Arm Patch 3" White & Blue EMT EMS US $2.99
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 Hawaii EMT - EMS 3.75" Embroidered Arm Patch Star Life US $2.99
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 New EMT/EMS Paramedic Knit Beanie Watch Cap w/ Embroidered Star Of Life Logo US $6.95
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 EMT EMS 3" Chest Patch Star Of Life Blue White & Gold US $2.49
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 EMT 3" Chest Patch Star Of Life with American Flag US $2.49
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 EMT EMS PARAMEDIC EMERGENCY PARAMEDIC STAR OF LIFE ROUND SHOULDER PATCH US $2.95
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 3.5"x2.5" EMS Eagle Teardrop Star Life Chest Patch Gold US $2.49
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 New Black EMS/EMT Paramedic Cotton Twill Cap w/ Embroidered Star of Life Logo US $7.95
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 Star of Life medical EMS EMT medics sticker 5" x 5" US $4.00
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 New EMT/EMS Paramedic Fire/Rescue Orange Trama Gear Backpack w/Star Of Life Logo US $54.95
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE 3X US $58.99
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE XX US $56.99
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 Reflective Star of Life pink sticker decal 3" US $4.00
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE MD US $53.99
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 5 Reflective EMT First Responder Paramedic Star Of Life US $4.99
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 6" Die Cut Star of Life Reflexite Decal / Patch {NEW} US $25.00
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 New EMT/EMS Paramedic Fire/Rescue Blue Trama Medic Bag w/ Star Of Life Logo US $22.49
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 New EMT/EMS Paramedic Fire/Rescue Orange Trama Medic Bag w/ Star Of Life Logo US $22.49
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 New 2 Pack EMT/EMS Paramedic Star of Life Adhesive Backed Decal 3-1/4" X 3-1/4" US $5.95
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 ''STAR OF LIFE'' ACRYLIC WATCH CAP US $9.99
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 5 Reflective Star Of Life Decals - Best On Ebay US $7.99
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE SM US $53.99
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 Reflective EMS Raincoat/Windbreaker, Printed Front & Back with Star Of Life,,,XL US $79.95
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 PARAMEDIC PATCH STAR of LIFE PARAMEDIC SHOULDER PATCH EMT EMS TECH US $2.95
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 5 Reflective EMT RN Registered Nurse Star Of Life US $4.99
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 EMT / EMS Cap Hat Star of Life Navy Blue with LED Lights for hands free in dark US $18.00
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 New EMT/EMS Paramedic Fire/Rescue Blue Trama Shoulder Bag w/ Star Of Life Logo US $29.99
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 New EMT/EMS Paramedic Fire/Rescue Orange Trama Shoulder Bag w/ Star Of Life Logo US $29.99
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 Hi-Vis Star of Life EMT EMS beanie Fire Department US $12.00
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 First Responder Arm Patch Red,Navy & White Star of Life US $2.99
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE XL US $53.99
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 Reflective Star of Life sticker decal for Helmet 3" US $4.00
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 New EMT/EMS Paramedic Fire/Rescue Trama Shoulder Bag w/ Star Of Life Logo US $21.95
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 14" Star of Life -Ambulance Decal -Blue w/ White border US $15.75
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 18" Star of Life -Ambulance Decal -Blue w/ White border US $21.60
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 32" Star of Life -Ambulance Decal -Blue w/ White border US $64.80
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 4" Star of Life - Ambulance Decal -Blue w/ White border US $5.20
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 EMT EMS PARAMEDIC HOODED STORM JACKET W STAR of LIFE LG US $53.99
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Star Life
Facts of stars of the sky
The stars are familiar objects. We see them every day and every night. A single star, our sun makes life possible on earth to grow. Stars live so long they seem eternal to us. But they all had a beginning, and they all have a purpose, too.
Stars begin their lives in huge clouds of gas and dust called nebulae. Nebulae contain mostly hydrogen gas, with a little helium. In most places, a nebula Gossamer is often so thin that if you crossed one, you do not notice. However, there are areas in a nebula where gravity causes the gas and dust to gather more and more dense and hot.
As more and more solid materials together in these areas, the temperature inside can become very hot, about fifteen million degrees. The gravitational pressure is so great that electrons in atoms of hydrogen and helium are stripped, leaving only the nuclei. As increases the gravitational force, the fuse atomic nuclei. This event is called nuclear fusion. It creates a huge boost of energy strong enough to offset the crushing gravitational force. The energy flows into space as light, heat and electromagnetic radiation. A new star is born, and he begins to shine.
Throughout his life, a star is caught in a balancing act between the crushing forces of gravity and the explosive force of nuclear fusion in its core. So it is important to the heart of the star can undergo the process of nuclear fusion, the star will fight gravity and continue to shine. But when the star has run out of fuel, it dies.
Most stars are the size of our Sun or smaller. Our sun is a yellow dwarf star, and it is fairly average in the universe. Stars the size of our sun, emit light generally in the spectrum of yellow or orange, and they live for about ten billion years.
The process of nuclear fusion converts hydrogen into helium. A star the size of our sun turns all its hydrogen into helium, then start converting helium into carbon and oxygen as it ages. The oxygen we breathe and the carbon material that provides the most vital for life on earth was created inside a star like our sun.
As middle age stars, the core contracts and the outer envelope expands to many times the original size of the star. This changes the stars from a yellow dwarf to a red giant. What will happen to our sun, one day she will swell until it covers the same orbit of Jupiter. Red giants are several times larger than our sun, but they are also cooler.
Finally, the basic contracts whenever possible. The atoms are packed in so well they can not be contracted. When this happens, a large amount of energy is released, pulling the outer envelope of gas and forming a nebula of gas and dust.
The only thing that remains of the star is well-packed core, called a white dwarf. White dwarfs still emit heat and light, but they no longer undergo nuclear fusion. Finally, when they radiate all their heat, they become cold, lifeless black dwarfs. There are no black dwarf stars of today, the universe has not existed long enough for all white dwarf stars to lose all its heat.
The most important stars have a different fate. A star about three times larger than the sun becomes a red supergiant as it ages, when many stars of the size of a red giant. It will run out of hydrogen and helium. It will start converting helium into carbon and oxygen, as an average star. When he runs out of helium, it will start converting the carbon and oxygen it produces heavier elements such as sodium, magnesium, sulfur and iron.
When such a star dies, contracts based on iron in an instant, sending a massive shockwave. This is a supernova explosion. Supernovae appear in our skies from time to time, many times brighter than the surrounding stars. The outer layers of gas are extracted and form a huge nebula. The explosion ejects also heavier elements like gold, silver and other metals.
The core, however, is another story. In most major stars, the core contracts so strong that even the protons in its remaining atoms are pulled out, leaving only neutrons. This is called a neutron star. Much more than ten miles or more in diameter, but they have an extremely strong magnetic field.
In stars more than three times larger than our sun, the core is so massive that the gravitational forces pulling together are too strong to stop. All remaining mass of the star is crushed into a single point, or singularity, no larger than a single atom. Here's how a black hole is born.
A gravitational black hole is so great that nothing, not even light, can escape. For this reason, black holes can not be directly observed. However, the question swirling around a black hole may indicate its position. Scientists think that black holes lurk at the centers of most galaxies, including ours.
Without stars, the universe could be an empty place. The stars are the furnaces that forge most of the elements that compose our world, the air we breathe for the metals that we build with the materials that compose our bodies. The next time you see a beautiful gold necklace, handle an iron skillet, or take a breath of fresh air, remember it from the heart of fire of a star.
About the Author
The author is a professor and have a great knowledge of stars and space
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