Examlex
The initial prediction by Percival Lowell of Pluto's position was close to the place it was, in fact, found by Clyde Tombaugh in 1930.
Halloween
An annual holiday celebrated on October 31st, involving traditions such as costume-wearing, trick-or-treating, and carving pumpkins into jack-o'-lanterns.
Doomsday Machine
A hypothetical device or concept, often mentioned in defense and speculative fiction, designed to trigger an automatic and irreversible destruction of humanity or Earth.
Rational Opponent
In strategic contexts, an adversary who makes decisions based on logic, aiming to maximize their own payoff or utility.
Macabre Comedy
A genre of comedy that involves humor derived from aspects of death and horror, often highlighting the absurdities of life and mortality.
Q8: Both a hydroelectric power plant and a
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Q22: Most lunar craters are volcanic in origin.
Q27: During a period of high solar activity,
Q32: The ozone layer lies above the troposphere
Q34: An oil shortage in 1973 was mainly
Q39: The ALH84001 meteorite, discovered in Antarctica, came
Q41: The sunspot cycle is sometimes described as
Q63: Pluto's density is most similar to<br>A) the
Q157: For a moon the same density as