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  1. en.wikipedia.org › wiki › MaglevMaglev - Wikipedia

    Vor einem Tag · All operational implementations of maglev technology make minimal use of wheeled train technology and are not compatible with conventional rail tracks. Because they cannot share existing infrastructure, maglev systems must be designed as standalone systems. The SPM maglev system is inter-operable with steel rail tracks and would permit maglev vehicles and conventional trains to operate on the ...

  2. Vor einem Tag · The University of Pennsylvania (Penn or UPenn) is a private Ivy League research university in Philadelphia, Pennsylvania, U.S.It is one of nine colonial colleges and was chartered prior to the U.S. Declaration of Independence when Benjamin Franklin, the university's founder and first president, advocated for an educational institution that trained leaders in academia, commerce, and public service.

    • 715 (7.1%)
    • 1,044 (10.4%)
    • 2,084 (20.7%)
    • 12 (0.1%)
  3. en.wikipedia.org › wiki › SiliconSilicon - Wikipedia

    Vor einem Tag · Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive.

  4. Vor einem Tag · Clarence Thomas Official portrait, 2007 Associate Justice of the Supreme Court of the United States Incumbent Assumed office October 23, 1991 Appointed by George H. W. Bush Preceded by Thurgood Marshall Judge of the United States Court of Appeals for the District of Columbia Circuit In office March 12, 1990 – October 23, 1991 Appointed by George H. W. Bush Preceded by Robert Bork Succeeded ...

  5. en.wikipedia.org › wiki › LSDLSD - Wikipedia

    Vor einem Tag · Uses Recreational LSD is commonly used as a recreational drug. Spiritual LSD can catalyze intense spiritual experiences and is thus considered an entheogen. Some users have reported out of body experiences. In 1966, Timothy Leary established the League for Spiritual Discovery with LSD as its sacrament. Stanislav Grof has written that religious and mystical experiences observed during LSD ...

  6. en.wikipedia.org › wiki › DDTDDT - Wikipedia

    Vor 2 Stunden · Properties and chemistry DDT is similar in structure to the insecticide methoxychlor and the acaricide dicofol. It is highly hydrophobic and nearly insoluble in water but has good solubility in most organic solvents, fats and oils. DDT does not occur naturally and is synthesised by consecutive Friedel–Crafts reactions between chloral (CCl 3 CHO) and two equivalents of chlorobenzene (C 6 H 5 ...

  7. en.wikipedia.org › wiki › EugenicsEugenics - Wikipedia

    Vor einem Tag · Eugenics became an academic discipline at many colleges and universities and received funding from many sources. Organizations were formed to win public support for and to sway opinion towards responsible eugenic values in parenthood, including the British Eugenics Education Society of 1907 and the American Eugenics Society of 1921.

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