Top 10 Facts About Earth and its Orbit

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Human bone is stronger than steel

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Your bones are incredibly strong. Ounce for ounce, bone is stronger than steel. One cubic inch of bone can withstand the weight of five standard pickup trucks, give or take a few pounds. If you’re looking for the specifics to snap a piece of your skeleton, it takes about 4,000 newtons of force to break the typical human femur. But don’t run out and start applying pressure to femurs and then get upset at us when things don’t crack correctly. A lot depends on the bone itself, its position in the body, and the angle of attack. The age, diet, and lifestyle of the bone-owner also plays a role. Before you go all Chuck Norris on bystanders to try this yourself.
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Lists of scientists This page contains links to list of scientists. By academic genealogy[edit] Academic genealogy of theoretical physicists Academic genealogy of chemists Academic genealogy of computer scientists By country, religion or ethnic background[edit] List of Armenian scientists and philosophers List of American scientists List of African-American inventors and scientists List of Arab scientists and scholars List of Austrian scientists List of Azerbaijani scientists and philosophers List of Brazilian scientists List of Bangladeshi scientists List of British scientists List of British Jewish scientists List of Cornish scientists List of Scottish scientists List of Welsh scientists List of Byzantine scholars (including scientists) List of Canadian scientists List of Chinese scientists List of Christian scientists List of Catholic scientists List of Christian Nobel laureates List of Jesuit scientists List of Roman Catholic cleric-scientists ...
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List of particles

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Elementary particles are particles with no measurable internal structure; that is, they are not composed of other particles. They are the fundamental objects of quantum field theory . Many families and sub-families of elementary particles exist. Elementary particles are classified according to their spin . Fermions have half-integer spin while bosons have integer spin. All the particles of the Standard Model have been experimentally observed, recently including the Higgs boson . [1] [2] Fermions Main article: Fermion Fermions are one of the two fundamental classes of particles, the other being bosons . Fermion particles are described by Fermi–Dirac statistics and have quantum numbers described by the Pauli exclusion principle . They include the quarks and leptons, as well as any composite particles consisting of an odd number of these, such as all baryons and many atoms and nuclei. Fermions have half-integer spin; for all known elementary fermions this is   1 ⁄ 2 . All know...
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