TVHON — Edutainment
Watch entertaining videos that teach you something new. Every clip on TVHON drops a surprising fact — fun to watch, easy to remember.
Latest videos
- Why Evolution Keeps Producing Crab-Like Animals
Crab-like body shapes have evolved independently at least five times among crustaceans, a process called carcinization.
Tags: Medicine
- Earth’s Magnetic Field Was About Twice as Strong in Roman Times
Earth’s magnetic field was about twice as strong during Roman times as it is today, based on clues preserved in ancient clay pots.
Tags: Earth
- Dinosaurs Ruled for 165 Million Years, Yet Only About 700 Species Are Known
Dinosaurs ruled Earth for about 165 million years, yet scientists have identified only about 700 extinct species, and the fossil record is far from complete.
Tags: Medicine
- The Radiation-Loving Mold Found at Chernobyl
A dark mold found at Chernobyl can survive intense radiation, and its melanin may help it tolerate and possibly use radiation as an energy source.
Tags: Medicine
- How Major Volcanic Eruptions Can Temporarily Cool Earth
Big volcanic eruptions can temporarily cool Earth when sulfur dioxide forms high-altitude particles that reflect sunlight back into space.
Tags: Earth
- Ice Volcanoes Are Real, and They Are Called Cryovolcanoes
Ice volcanoes, called cryovolcanoes, can erupt water, gases, and hydrocarbons instead of the molten rock we associate with volcanoes.
Tags: Astronomy
- Why Black Holes May Have a Growth Limit of 50 Billion Suns
A black hole may hit a growth limit around 50 billion Suns because its feeding disk can start forming stars instead of falling inward.
Tags: Astronomy
- Black Holes Slowly Evaporate Through Hawking Radiation
Black holes are predicted to leak tiny amounts of radiation, slowly losing mass until isolated black holes eventually evaporate.
Tags: Astronomy
- Why Octopuses Have Three Hearts and Blue Blood
Octopuses have three hearts and blue blood from copper-based hemocyanin, while blue-ringed species carry a powerful venom that can cause paralysis and death.
Tags: Medicine
- The 330-Million-Year-Old Fossil That Revealed an Ancient Octopus Relative
A 330-million-year-old Montana fossil is one of the oldest known vampyropods, an ancient group related to modern octopuses and vampire squid.
Tags: Medicine
- Why Two-Thirds of an Octopus’s Neurons Are in Its Arms
About two-thirds of an octopus’s roughly 500 million neurons are in its eight arms, giving those arms unusually independent control.
Tags: Mind
- How Dolphins Get Fresh Water While Living in the Ocean
Dolphins and other cetaceans get most of their water from food, while breaking down nutrients also creates extra metabolic water inside their bodies.
Tags: Medicine