“Generally, criminal profilers begin their career by getting a degree in forensics or psychology. The best criminal-profiling academy is the FBI Academy in Quantico, Virginia, which is a highly competitive institution. Students are typically between the ages of 23 and 27, after beginning their careers either in law enforcement or the FBI. Most entrants have already spent three years in the FBI before entering the Academy. After successfully graduating from the FBI Academy, profilers will use their new skills to look into the psyche of a criminal… Learn more on the profile of A criminal profiler.” w/ photos

“This video portrays a brief history of aviation in 3D animation. While there are many contributions to aviation that could not be included, this video shows many of the substantial advancements that propelled aviation to what it has become today.”

“Dr. Martin classified refined sugar as a poison because it has been depleted of its life forces, vitamins and minerals. ‘What is left consists of pure, refined carbohydrates. The body cannot utilize this refined starch and carbohydrate unless the depleted proteins, vitamins and minerals are present. Nature supplies these elements in each plant in quantities sufficient to metabolize the carbohydrate in that particular plant. There is no excess for other added carbohydrates. Incomplete carbohydrate metabolism results in the formation of ‘toxic metabolite’ such as pyruvic acid and abnormal sugars containing five carbon atoms. Pyruvic acid accumulates in the brain and nervous system and the abnormal sugars in the red blood cells. These toxic metabolites interfere with the respiration of the cells. They cannot get sufficient oxygen to survive and function normally. In time, some of the cells die. This interferes with the function of a part of the body and is the beginning of degenerative disease.” w/ photos

“It’ll never stir the passions like a Ferrari and you won’t see its picture adorning the bedroom wall of the average adolescent teenage boy. But the venerable Toyota Corolla has overtaken Fords F-series truck to become the best selling vehicle of all time. The ultra-reliable, if perhaps rather dull, Japanese runaround has clocked up global sales of around 37.5 million since it was first rolled out in 1966. With its winning recipe of value-for-money, thrifty gas mileage and a huge dealer network, a Corolla has been sold on average once every 40 seconds for the past 40 years.” w/ photos

“It was the tradition for many centuries for death masks to be made of monarchs, artists and politicians in the time directly after their demise. Take a look at the many faces of death and find out who this is above.” w/ photos

“When you get the flu, viruses turn your cells into tiny factories that help spread the disease. In this animation, NPR’s Robert Krulwich and medical animator David Bolinsky explain how a flu virus can trick a single cell into making a million more viruses.” — NPR

“John Brenkus and the SportScience team examine the affects of snow on athletes.”

“The old phrase ‘You scratch my back, I’ll scratch yours’ may need updating. For the ankle has overtaken the back as the most satisfying spot to scratch, according to researchers at the Wake Forest School of Medicine in North Carolina. In the study, reported in the British Journal of Dermatology, healthy volunteers were made to itch on the forearm, ankle and back by rubbing them with cowhage, a plant with tiny hairs that irritate the skin… Professor Francis McGlone, a member of the International Forum for the Study of Itch, said: ‘It was interesting that the ankle was the itchiest site and that the most pleasure came from scratching it, because the back has been well-known as a preferred site for scratching.” w/ photos

“Before we know it they’ll be speaking French. Dolphins are so intelligent they can learn to speak a second language – in their sleep. Captive dolphins in in Port-Saint-Père, France have been recorded sleep talking, scientists have found. But bizarrely, as they rest at night, the aquatic mammals are not making dolphin sounds but whale-like noises. Péos, Mininos, Cécil, Teha, and Amtan, who were born in captivity, have only ever heard whale sounds as recordings, Science magazine reported. If the sounds are confirmed to be ‘whale’, it would be the first known instance of dolphins remembering a particular noise and repeating it ‘later’, researchers say.” w/ photos

“With a few liberating swipes of their paws, a group of research rats freed trapped labmates and raised anew the possibility that empathy isn’t unique to humans and a few extra-smart animals, but is widespread in the animal world. Though more studies are needed on the rats’ motivations, it’s at least plausible they demonstrated ‘emphatically motivated pro-social behavior.’ People would generally call that helpfulness, or even kindness. ‘Rats help other rats in distress. That means it’s a biological inheritance,’ said neurobiologist Peggy Mason of the University of Chicago. ‘That’s the biological program we have.’ In a study published in Science, Mason and University of Chicago psychologists Jean Decety and Inbal Ben-Ami Bartal describe their rat empathy-testing apparatus: An enclosure into which pairs of rats were placed, with one roaming free and the other restrained inside a plastic tube. It could only be opened from the outside, which is exactly what the free rats did — again and again and again, seemingly in response to their trapped companions’ distress.” w/ photo + video