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2. Speed of light - Wikipedia

   en.wikipedia.org/wiki/Speed_of_Light

   As a consequence of this, if a robot on the surface of Mars were to encounter a problem, its human controllers would not be aware of it until 5–20 minutes later. It would then take a further 5–20 minutes for commands to travel from Earth to Mars. Receiving light and other signals from distant astronomical sources takes much longer.

3. Morse code - Wikipedia

   en.wikipedia.org/wiki/Morse_code

   Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. [3] [4] Morse code is named after Samuel Morse, one of the early developers of the system adopted for electrical telegraphy .

4. Linear regression - Wikipedia

   en.wikipedia.org/wiki/Linear_regression

   e. In statistics, linear regression is a statistical model which estimates the linear relationship between a scalar response and one or more explanatory variables (also known as dependent and independent variables ). The case of one explanatory variable is called simple linear regression; for more than one, the process is called multiple linear ...

5. Rwandan genocide - Wikipedia

   en.wikipedia.org/wiki/Rwandan_genocide

   According to Amnesty International, of the 489 individuals convicted of "genocide revisionism and other related crimes" in 2009, five were sentenced to life imprisonment, five were sentenced to more than 20 years in jail, 99 were sentenced to 10–20 years in jail, 211 received a custodial sentence of 5–10 years, and the remaining 169 ...

6. Fibonacci sequence - Wikipedia

   en.wikipedia.org/wiki/Fibonacci_sequence

   Fibonacci sequence. A tiling with squares whose side lengths are successive Fibonacci numbers: 1, 1, 2, 3, 5, 8, 13 and 21. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn .

7. Intelligence quotient - Wikipedia

   en.wikipedia.org/wiki/Intelligence_quotient

   An intelligence quotient ( IQ) is a total score derived from a set of standardised tests or subtests designed to assess human intelligence. [1] The abbreviation "IQ" was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in ...