Does Antarctica contain extremely dry valleys?
Yes. Antarctica includes the McMurdo Dry Valleys, one of Earth's coldest and driest desert environments.
Facts checked
Verified Facts
Wonders delivered with dates, sources, and plain-language answers.
Are bats actually blind?
No. Bats are not blind; many use both eyesight and echolocation.
Was the Declaration signed on July Fourth?
No. Congress adopted the Declaration on July 4, but signing occurred over time.
Was Symbolics.com one of the first registered domains?
Yes. Internet history sources identify Symbolics.com as the first registered .com domain in 1985.
Do earthquake machines record shaking as zigzags?
Yes. A seismograph records ground motion, producing a seismogram that shows earthquake waves.
Did radio help save the Eiffel Tower?
Yes. Its radio and communications value helped justify keeping the tower.
Was a real moth found in an early computer?
Yes. The Smithsonian preserves the famous 1947 log page with a moth from the Harvard Mark II.
Is email older than the World Wide Web?
Yes. Networked email predates the Web by many years.
Does GPS need relativity to stay accurate?
Yes. Relativistic effects are part of keeping satellite navigation timing accurate.
Can honey stay edible for a very long time?
Yes, properly stored honey resists spoilage because of its low moisture and acidic chemistry.
Does most international internet traffic travel under the sea?
Yes. Submarine fiber-optic cables are the backbone of global internet traffic.
Is Jupiter's Great Red Spot a giant storm?
Yes. The Great Red Spot is a long-lived storm system in Jupiter's atmosphere.
Is the Liberty Bell famous partly because it cracked?
Yes. The Liberty Bell's crack is real and central to its modern appearance.
Is the Library of Congress enormous?
Yes. The Library of Congress describes its collections as containing more than 170 million items.
Can lightning get hotter than the Sun's surface?
Yes. NOAA explains that lightning can heat nearby air to around 50,000 degrees Fahrenheit.
Is Abraham Lincoln the only U.S. president with a patent?
Yes. Lincoln received a patent in 1849 for a device to lift boats over shoals.
Can a mantis shrimp strike faster than a blink?
Yes. Mantis shrimp use spring-loaded appendages to strike prey with extraordinary speed.
Does Mars have a volcano taller than Everest?
Yes. Olympus Mons on Mars is far taller than Mount Everest.
Can astronaut footprints last on the Moon for ages?
Yes. Without wind or rain, lunar footprints can persist until micrometeorites or other impacts disturb them.
Is most of the ocean still unmapped in high detail?
Yes. NOAA repeatedly notes that the ocean is still only partly explored and mapped.
Does an octopus have three hearts?
Yes. Octopuses have three hearts that support circulation through their gills and body.
Does Pluto have a giant heart-shaped region?
Yes. NASA's New Horizons mission revealed Pluto's bright heart-shaped Tombaugh Regio.
Was the QR code invented in the 1990s?
Yes. DENSO Wave says it developed the QR Code in 1994.
Is a rainbow actually a full circle?
Yes. From high enough viewpoints, observers can see more of the rainbow circle.
Would Saturn float in a big enough bathtub?
Yes, as a density comparison. Saturn's average density is lower than water, though no bathtub could hold it.
Do sea otters use rocks as tools?
Yes. Sea otters are documented tool users that use stones to crack open prey.
Are sharks older than trees?
Yes. Shark-like fishes are older in the fossil record than the earliest forests.
Was the Statue of Liberty originally copper-colored?
Yes. Its copper skin changed color as it developed a green patina.
Can tardigrades survive exposure to space?
Yes, some tardigrades have survived direct exposure to space in research experiments.
Can forest fungi connect tree roots?
Yes. Mycorrhizal fungi form relationships with roots and can link plants through underground networks.
Is a day on Venus longer than its year?
Yes. Venus rotates so slowly that one Venus day is longer than the time it takes to orbit the Sun.
Does water expand when it freezes?
Yes. Ice is less dense than liquid water, which is why it floats.
Can you still visit a copy of the first website?
Yes. CERN maintains material about the birth of the World Wide Web and its first site.
Did the first Wright brothers flight last under a minute?
Yes. The first successful powered flight on December 17, 1903 lasted 12 seconds.
Are Yellowstone geysers powered by hidden heat?
Yes. Yellowstone's geysers need heat, water, pressure, and plumbing beneath the surface.