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May 27, 2024 · Artists and scientists have been creating optical illusions for centuries. Here are 32 mind-bending examples that prove you can't always trust what your eyes are telling you. When you purchase ...
- Patrick Pester
liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place. Liquids and solids are often referred to as condensed phases because the particles are very close together.
- The Average Human Body Carries Ten Times More Bacterial Cells Than Human Cells
- There Are Actually Over Two Dozen States of Matter
- Killer Whales Are Actually Dolphins
- Grasshoppers Have Ears in Their Bellies
- You Can’T Taste Food Without Saliva
- Octopuses Have Three Hearts, Nine Brains, and Blue Blood
- The Known Universe Is Made Up of 50,000,000,000 Galaxies.
- Hot Water Freezes Faster Than Cold Water
- About 1% of Our Genes Come from Plants, Fungi, and Other Germs
- The Human Brain Can Store as Much Information as The Entire Internet
It’s funny how we compulsively wash our hands, spray our countertops, or make a grimace when someone sneezes near us, when, in fact, each and every one of us is a walking petri dish! All the bacteria living inside you could fill a half-gallon jug — there are 10 times more bacterial cells in your body than human cells, according to Carolyn Bohach, a...
Everybody knows that there are at least three states of matter: solid, liquid, and gas. If you’re a little bit more versed in physics, you also know about the fourth fundamental state of matter called plasma — a hot ionized gas, with prime examples including lightning or neon signs. But beyond these common states of matter, scientists have discover...
Despite their name, killer whales or orcas are the largest members of the dolphin family. Technically, orcas are also whales because delphinids belong to the Cetacean order within the toothed whale (Odontoceti) suborder. However, the term whale is typically reserved for baleen whales of theMysticetisuborder. The major physical feature that ensures ...
Unlike humans, grasshoppers do not have ears on the side of their heads. Like the ears of people, the grasshopper sound detector is a thin membrane called a tympanum, or “eardrum”. In adults, the tympanum is covered and protected by the wings, and allows the grasshopper to hear the songs of its fellow grasshoppers. The grasshopper tympanum is adapt...
In order for food to have taste, chemicals from the food must first dissolve in saliva. It’s only once they’ve been dissolved in a liquid that the chemicals can be detected by receptors on taste buds. During this process, some salivary constituents chemically interact with taste substances. For example, salivary buffers (e.g., bicarbonate ions) dec...
Two of the hearts work exclusively to move blood beyond the animal’s gills, while the third keeps circulation flowing for the organs. When the octopusswims, the organ heart stops beating, which explains why these creatures prefer to crawl rather than swim (it exhausts them). An octopus also has nine brains — well, sort of. There’s one ‘main’ brain ...
There are between 100,000,000,000 and 1,000,000,000,000 stars in a normal galaxy. In the Milky Way alone there might be as many 100 billion Earth-like planets. Still think we’re alone?
In certain conditions, hot water can freeze faster than cold water — a counter-intuitive phenomenon known as the Mpemba effect. There is a number of proposed explanations for the Mpemba effect, including faster evaporation of hot water that reduces the volume left to freeze, the formation of a frost layer on cold water that insulates it, or differe...
According to research from the University of Cambridge, humans have evolved with genes acquired from plants and fungi. But how did they get there? Rather than a straightforward single-branching tree where genes are inherited from parents, scientists argue that sometimes foreign genes may spread by a process known as horizontal gene transfer. For in...
A 2016 study by biologists at the Salk Institute in La Jolla, California, shook the field of neuroscience, finding that the human brain’s memory capacity exceeded previous conservative estimates by a factor of 10. They calculated that the typical human brain could store one petabyteof information or a quadrillion bytes. To put this figure into pers...
- Science Journalist
Many define science as an intellectual pursuit that involves the observation of natural occurrences and events, to discover the hidden facts and to formulate laws, theories and principles based on those facts.
Kids learn about the properties waves in the science of physics including amplitude, wavelength, frequency, period, and speed.
Jan 30, 2021 · A physical property of matter is a characteristic that can be observed and measured without changing the chemical identity of a substance. Any property that can only be observed after a chemical change occurs is a chemical property, but a physical property can be seen when no change occurs or when a physical change happens.
Sep 29, 2019 · From the ocean floor to the craters on the moon, science is taking us to new depths and new heights. Explore the universe with these scientific facts.
