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3 天前 · The word psychopathy is a joining of the Greek words psyche ( ψυχή) "soul" and pathos ( πάθος) "suffering, feeling". [17] The first documented use is from 1847 in Germany as psychopatisch, [18] and the noun psychopath has been traced to 1885. [19] In medicine, patho- has a more specific meaning of disease (Thus pathology has meant the ...
2 天前 · Ludwig van Beethoven [n 1] (baptised 17 December 1770 – 26 March 1827) was a German composer and pianist. He is one of the most revered figures in the history of Western music; his works rank among the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era in classical music.
3 天前 · Definitions Generation and parameters Let be a standard normal variable, and let and be two real numbers, with >.Then, the distribution of the random variable = + is called the log-normal distribution with parameters and .These are the expected value (or mean) and standard deviation of the variable's natural logarithm, not the expectation and standard deviation of itself.
3 天前 · Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a ...
3 天前 · A supernova ( pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...
1 天前 · Clone phishing is a type of attack where a legitimate email with an attachment or link is copied and modified to contain malicious content. The modified email is then sent from a fake address made to look like it's from the original sender. The attack may appear to be a resend or update of the original email.
3 天前 · Electronic symbol. In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other. The capacitor was originally known as the condenser, [1] a term still encountered in a few compound names, such as the condenser microphone.
