10 Scientific Discoveries That Changed The World
WEBJan 18, 2024 · Mathematician and astronomer Nicolaus Copernicus is often credited with proposing the first heliocentric model of the universe. In 1543, he published his great work, On the Revolutions of the Heavenly Spheres, which explained his theories. Among them was that day and night was created by the Earth spinning on its axis. Copernican …
The Evolution of DNA Forensics and Its Impact on Solving Crimes
WEBOct 26, 2023 · DNA evidence was first used in the criminal case of Lynda Mann and Dawn Ashworth in 1986. The police approached Jeffreys's team, asking for help on a double rape and murder case of two teenagers from Narborough, just 5 miles southeast of his university. Though the crimes were two and a half years apart, 15-year-olds Lynda Mann and Dawn …
Ice Ages: What Causes the Earth to Freeze Over Every Few Million …
WEBFeb 3, 2021 · Warming up, however, happens much faster. Changes in ocean currents are one of the reasons ice melts faster than it builds up. “If Earth’s orbit moves back into a configuration where the planet is receiving a lot of energy, the oceans start heating up, and the edges of the ice sheets begin to melt," explains Thomas.
The Dawn of Fire: When Did Early Humans First Discover Fire?
WEBSep 21, 2023 · The evidence for humans making fires themselves (and cooking more regularly with them) suggests it first started around 800,000 years ago, with some researchers speculating it began as early as 1.5 million years ago. It’s around this time that humans begin to cook and gather around fires. Once humans started cooking regularly, …
What Is the Scientific Mystery Behind the Bermuda Triangle?
WEBJan 4, 2024 · The Bermuda Triangle has been the site of a number of high-profile and still-mysterious naval and aviation disappearances. But that those disasters are the result of anything sinister, as opposed to the logical conjunction of environment and statistics, is extremely doubtful. Still, a number of people have proposed scientifically valid ...
The Sahara Desert: Everything to Know About the Largest Desert …
WEBFeb 5, 2024 · The name Sahara itself comes from the Arabic word for desert. The English word desert comes from the Latin desertum, denoting a place that is forsaken, uninhabited or without people.In fact, the Sahara is far from uninhabited. The desert is located mainly in northern Africa, spread across 10 different countries (11 if you include Western Sahara, …
A Complete Dinosaur Timeline to Extinction: How Long Did They …
WEBJun 21, 2023 · The dawn of dinosaurs began with the Permian mass extinction, also known as the Great Dying.This event, around 252 million years ago, killed more than 90 percent of life on Earth at the time. Scientists are unclear on what actually caused this mass die-off (warming temperatures and volcanic activity likely played a role) but it is widely …
How Deep Is the Mariana Trench and What Have We Found in its …
WEBNov 29, 2023 · Some measurements in the Mariana Trench have charted depths exceeding 6.5 miles (or 36,000 feet) in the deepest spot, dubbed Challenger Deep. The average depth of the world’s oceans comes in around 12,000 feet, or 2.3 miles, according to a comprehensive research effort with the National Oceanic and Atmospheric …
Here's How Ozempic Actually Works for Weight Loss
WEBMay 7, 2024 · Ozempic is an injectable treatment administered once a week. The U.S. Food and Drug Administration (F.D.A.) approved a smaller dose of the drug for treating diabetes in 2017, as well as a larger dose of the drug for treating obesity in 2021, branded under the name Wegovy.As GLP-1 agonists, their active ingredient is semaglutide, which mimics a …
Finally, an Accurate World Map That Doesn't Lie
WEBNov 29, 2022 · Robinson Projection. This attempt at creating a faithful world map took a similar tack to the Sinusoidal by pulling out the edges of the map to mimic a sphere. The Robinson isn’t as extreme, however, taking the form of a much more gentle oval. The map was an attempt at a compromise between distorting the areas of continents and the …