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so sleep alone tonight
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Physic- 20
What is the densest object on Earth?I've researched on it and i've gotten various answers: 1) Neutrons. Explanation: Many subatomic particles are considered points, and thus could be thought of as having an infinite density, the neutron has a measurable size (about 10-15 m in diameter) as well as mass (about 1.7 x 10-27 kg). Those numbers result in a density of about 1018 kg/m3. That value matches the estimated density of neutron stars, the densest objects known in the Universe. (A black hole's mass is concentrated in an immeasurable singularity). A single neutron is a smaller (MUCH smaller!) version of a neutron star, and the Earth is loaded with neutrons. 2) The densest element on Earth is osmium. Osmium (pronounced /ˈɒzmiəm/) is a chemical element that has the symbol Os and atomic number 76. Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family, and is the densest natural element. The density of osmium is 22610 kg⁄m³ (22.61 g⁄cm³), slightly greater than the density of iridium, the second densest element. Osmium is used in alloys with platinum, iridium and other platinum group metals. Osmium is found in nature as an alloy in platinum ore. Alloys of osmium are employed in fountain pen tips, electrical contacts and in other applications where extreme durability and hardness are needed. reference: http://www.physlink.com/Education/askexperts/ae299.cfm http://en.wikipedia.org/wiki/Osmium |