Did you know...Stomach acid is strong enough to dissolve stainless steel
Your stomach digests food thanks to highly corrosive hydrochloric acid with a pH of 2 to 3. This acid also attacks your stomach lining, which protects itself by secreting an alkali bicarbonate solution. The lining still needs to be replaced continually, and it entirely renews itself every four days.
Did you know..... It takes 8 minutes, 19 seconds for light to travel from the Sun to the Earth
In space, light travels at 300,000 kilometres (186,000 miles) per second. Even at this breakneck speed, covering the 150 million odd kilometres (93 million miles) between us and the Sun takes considerable time. And eight minutes is still very little compared to the five and a half hours it takes for the Sun’s light to reach Pluto.
Limulus Polyphemus —the Atlantic horseshoecrab—has extremely valuable blood. Unlike the blood of vertebrates, horseshoecrabs do not use hemoglobin to transport oxygen throughout their body. Instead, they use hemocyanin, a chemical that gives their blood that distinctive blue color
Did you know.... There are more trees on Earth than stars in our galaxy.
NASA experts believe there could be anywhere from 100 billion to 400 billion stars in the Milky Way galaxy, based upon Snopes reports. However, a 2015 paper published in the journal Nature estimated that the number of trees around the world is much higher: 3.04 trillion.
Did you know..... Hot water freezes faster than cold water.
This fact seems counterintuitive, but it’s called the Mpemba effect, after a Tanzanian student named Erasto Mpemba who told his teacher that a hot mixture of ice cream froze faster than a cold one. Scientists now believe this is because the velocities of water particles have a specific disposition while they’re hot that allows them to freeze more readily. If proven correct, this finding could also have implications in daily life, like cooling down electronic devices.
A time crystal is a state of matter that shows robust oscillations in time, and although forbidden in equilibrium, a discrete time crystal has now been observed in a periodically driven quantum system.
Did you know.... The Earth appears to have a whole new underground continent called Zealandia.
The discovery itself isn’t new – some geologists have been arguing for its existence for many years. However, in 2017 a team of scientists concluded Zealandia fulfils all the requirements to be considered a drowned continent.
Did you know..... It is theoretically possible to travel back and forth in time.
Two physicists developed a mathematical model for a time machine based on Einstein’s theory of relativity (which was proven in 2015), that gravitational fields are caused by distortions in the fabric of space and time. What’s holding us back is that the technology that can physically bend this space-time fabric hasn’t been invented yet.
Researchers tracking eight million mutations found that a number of genes – such as the one that predisposes you to Alzheimer’s disease – are gradually being filtered out of human DNA. Not really a surprise.
Author summary Our global understanding of adaptation in humans is limited to indirect statistical inferences from patterns of genetic variation, which are sensitive to past selection pressures. We introduced a method that allowed us to directly observe ongoing selection in humans by identifying...
In the sleepy town of Newent located between Gloucester & Ross-On-Wye known largely for it's annual town fair and eating raw onions as a sport hides a cryptographic mystery in plain sight. Passed by several hundred schoolkids and countless locals over the years few notice the strange brickwork of the bungalows in Ackermans Orchard. You can see it for yourself on Google street view.
Some say the property developer died without children leaving his wealth to whoever solved the riddle. Others say it was just a drunken bricklayer. All we know is that nothing is as random as this seems.