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 …
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 recognized as the worst extinction ever to have occurred.
Why Did Our Paleolithic Ancestors Paint Cave Art?
WEBDec 27, 2022 · In the dark recesses of hundreds of caves around the world, our prehistoric ancestors painted lush panoramas of ancient animals — herds of herbivores racing across the caves’ walls and fearsome predators stalking their prey.Tens of thousands of years later, the vibrant colors and uncanny sense of motion still move us. No one knows why our prehistoric ancestors painted cave art.
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 ...
How Is Silk Made? The Ethical Dilemma of Its Origins
WEBNov 28, 2023 · The process of harvesting these cocoons for silk is called sericulture, and has existed for thousands of years.Essentially, farmers create an artificial environment for the moths to lay their eggs on special paper, where they will hatch and become larvae.Next, they’re fed a steady diet of mulberry leaves, and after roughly 35 days of growing and multiplying in size, they’re ready to make ...
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 Administration in 2010.. But this encompasses a seafloor that, similar to dry land ...
5 Of The Biggest Animals To Ever Live On Earth
WEBJul 8, 2022 · 5. Blue Whale. (Credit:Chase Dekker/Shutterstock) Although all these other giant creatures are extinct, there’s one that still exists. The blue whale is the largest animal to ever live. At almost 100 feet long and up to 200 tons, these animals outsize all others.
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 heliocentrism replaced the conventionally accepted Ptolemaic ...
Are Dragons Real? The Unique History and Origins of Mythical …
WEBJan 4, 2023 · The Origin of Mythical Dragons. According to medieval legend, the town of Klagenfurt in Austria was founded on a marsh that was home to a Lindwurm, or wingless dragon. Those wanting to settle in the area had to first deal with the dragon before founding Klagenfurt. As is traditional with dragons, this one gobbled up anyone who tried to cross ...
10 Famous Scientists and Their Contributions - Discover Magazine
WEBOct 19, 2023 · Get to know the greatest scientists in the world. Learn how these famous scientists changed the world as we know it through their contributions and discoveries. By Gemma Tarlach, Nathaniel Scharping, Lacy Schley, Bill Andrews, Eric Betz, Carl Engelking, Elisa Neckar, Ashley Braun, and Mark Barna. Oct 19, 2023 1:45 PMOct 19, 2023 1:43 PM.