Tag: science & technology

William Herschel discovered Uranus in 1781, making it the first planet discovered with a telescope. Herschel was a German-born British astronomer who initially named it 'Georgium Sidus' (George's Star) after King George III.

Pluto was discovered by Clyde Tombaugh in 1930 at the Lowell Observatory in Arizona. The name in the question appears to be a typo for 'Clyde.' Tombaugh was a 24-year-old amateur astronomer when he made this historic discovery.

Antarctica is the coldest place on Earth, with temperatures reaching as low as -89.2°C (-128.6°F) at Vostok Station. The entire continent is covered by ice and experiences extreme cold due to its polar location, high elevation, and extended periods of darkness.

Ursa Major is Latin for 'great bear.' The constellation has been recognized as a bear across many cultures for thousands of years, and its name directly translates to this animal.

Douglas Engelbart invented the computer mouse in 1964 while working at Stanford Research Institute. It was patented in 1970 and revolutionized human-computer interaction by making personal computers much more accessible.

Valentina Tereshkova became the first woman in space on June 16, 1963, piloting the Vostok 6 mission. She spent almost three days in orbit and remains the only woman to have flown a solo space mission.

Black holes form when massive stars (at least 25x solar mass) undergo supernova explosions, leaving behind cores dense enough that gravity prevents even light from escaping. Fusion reactions power stars but don't directly create black holes. Black holes can form through other mechanisms too, but stellar collapse is the primary path.

True. General relativity predicts gravity bends spacetime itself, so light passing near massive objects follows curved paths. This was first observed during a 1919 solar eclipse, confirming Einstein's theory. Black holes, with extreme gravity, dramatically bend nearby light.

A white hole is a hypothetical region of spacetime that cannot be entered from the outside, though matter and energy can escape from it - essentially the theoretical time-reversal of a black hole. While white holes exist in general relativity mathematics, they have never been observed and remain theoretical constructs. Options B, C, and D are clearly incorrect or nonsensical responses.