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Moths and Enemy Sonar
Luna Moth BE5506
"The camouflage and mimicry techniques that animals use to avoid becoming a meal aren't much use against a predator using echolocation. But a new study shows that moths can outsmart sonar with a flick of their long tails. Using high-speed infrared cameras and ultrasonic microphones, the researchers watched brown bats preying on moths. Luna moths with tails were 47 percent more likely to survive an attack than moths without tails. Bats targeted the tail during 55 percent of the interactions, suggesting the moths may lure bats to the tails to make an attack more survivable." - Science Daily, University of Florida, February 18, 2015, Moths shed light on how to fool enemy sonar View more images of luna moths
Alzheimer’s has been a mysterious disease ever since it was discovered. Considered to be a condition that fits into the dementia category, Alzheimer’s disease is characterized by physical changes in the brain that deteriorate brain function, cognitive ability, and memory in a certain pattern. People who are at least 65 years old are most often affected, however, there are also early-onset cases.
The progression of Alzheimer’s happens over decades and since the brain is such a complicated organ, it has been difficult for scientists to study.
The brain of the patient that had the first named case of Alzheimer’s disease was found to have amyloid (protein) plaques and tao tangles (tangles of fibers) within it. These abnormalities have long been considered by medical professionals to be one of the main causes of the disease, however recent studies suggest that the true cause could be another condition that happens initially, and this abnormal tissue growth may be a secondary symptom.Stock…
Today alchemy conjures up images of boiling cauldrons and magic elixirs, but the past reveals its lasting impact on the foundation of science.
Alchemy began in ancient Egypt, sometime between the 4th and 3rd century BC, with the aim of transmuting base metals (i.e led) into noble metals, such as gold.
In the 8th century AD, Arab alchemists invented the first laboratories for transmutation, creating complex methods of classification and documentation. Jabir ibn Hayyan and Muhammad ibn Zakarīya Rāzi even made breakthroughs in chemistry, discovering sulfuric and hydrochloric acid. Alchemy Stock Photos
Islamic alchemy inspired the later European search for the philosopher’s stone, an object believed to turn base metals into gold and bestow its owner with eternal life. The investigation lasted hundreds of years and although unsuccessful, produced countless experiments and lengthy chronicles of their results.
The pursuit of the philosopher’s stone was echoed in China by the search for t…
A murder victim can no longer speak like you and I can, but through scientific methods, they may have an awful lot to say. This is the science of forensics, and there are many branches of it.
Forensics has been popularized by many TV show, books, and movies. Everyone is familiar with the fast-paced crime solving that is showcased: a piece of evidence gets delivered to a crime lab, within hours or mere minutes it is analyzed, and the forensic scientist is off to capture the criminal.Stock Images of Forensic Science
In reality, what forensic scientists do is a bit different. They rarely, if ever, visit a crime scene, and they certainly don’t chase down suspects, gun in hand, after spending an hour in the lab doing DNA analysis. A typical forensic scientist spends their entire day in the lab. Most DNA takes about 30 days to process due to budgetary constraints and the vast number of cases.
Despite not usually doing filed work, the excitement and rewards of being part of a successful ca…