Lifeboat Foundation

The origin of our teeth goes back more than 400 million years back in time, to the period when strange armored fish first developed jaws and began to catch live prey. We are the descendants of these fish, as are all the other 60,000 living species of jawed vertebrates — sharks, bony fish, amphibians, reptiles, birds and mammals. An international team of scientists led by Uppsala University (Sweden), in collaboration with the ESRF, the European Synchrotron (France), the brightest X-ray source, has digitally ‘dissected’, for the first time, the most primitive jawed fish fossils with teeth found near Prague more than 100 years ago. The results, published recently in Science, show that their teeth have surprisingly modern features.

Teeth in current jawed vertebrates reveal some consistent patterns: for example, new teeth usually develop on the inner side of the old ones and then move outwards to replace them (in humans this pattern has been modified so that new teeth develop below the old ones, deep inside the jawbone). There are, however, several differences between bony fish (and their descendants the land animals) and sharks; for example the fact that sharks have no bones at all, their skeleton is made of cartilage, and neither the dentine scales nor the true teeth in the mouth attach to it; they simply sit in the skin. In bony fish and land animals, the teeth are always attached to jawbones. In addition, whilst sharks shed their worn-out teeth entire, simply by detaching them from the skin, bony fish and land animals shed theirs by dissolving away the tooth bases.

NASA’s most advanced Mars rover, Perseverance, will launch from Earth on 30 July on a mission to seek out signs of ancient microbial life on what was once a river delta three-and-a-half billion years ago.

NASA’s next rover to the Red Planet is slated to launch no earlier than July 30. These highlights will get you up to speed on the ambitious mission.

Continue reading “7 Things to Know About the Mars 2020 Perseverance Rover Mission” »

PMBO 2013 ~Russ’s Final Entry Video… OVER 1/2 Million RPM 588,000RPM NEO Sphere Air Bearing With ABHA Coil. other entry will be posted here: http://rwgrese…

The amygdala is the brain’s surveillance hub: involved in recognizing when someone with an angry face and hostile body language gets closer, tamping down alarm when a honeybee buzzes past, and paying attention when your mother teaches you how to cross the street safely and points out which direction traffic will be coming from — in other words, things people should run away from, but also those they should look toward, attend to and remember.

In that sense, researchers say, this little knot of brain tissue shows just how tangled up emotion and social behavior are for humans. “Important events tend to be emotional in nature,” as do most aspects of social behavior, says John Herrington, assistant professor of psychiatry at the Children’s Hospital of Philadelphia in Pennsylvania.

As a result, the amygdala has long been a focus of autism research, but its exact role in the condition is still unclear.

The consumer-electronics research arm has been quiet for years—but it’s also been busy. Its new mission: Make Google hardware as smart as Google software.

Adidas GMR, a smart insole for soccer players, is powered by Google ATAP’s Jacquard technology. [Photo: courtesy of Google].

Cheap paper and pencil-based medical wearables could one day replace expensive health monitors.

Hello Robot’s Stretch wants to reinvent how mobile manipulators perform tasks in home environments.

Singapore has just begun to get its second wave of coronavirus under control. Now, it’s on track to face its worst-ever outbreak of another viral infection: dengue.

More than 14,000 dengue cases have been reported in the city-state since the start of the year, according to the National Environment Agency (NEA). The total number for the whole year is expected to exceed the 22,170 cases reported in 2013 — the largest dengue outbreak in Singapore’s history, the agency said.

Dengue is a viral infection transmitted by the Aedes mosquito, the same insect responsible for spreading Zika, chikungunya and yellow fever. It is commonly found in hot, wet regions of the tropics and subtropics during the rainy months.

Unlimited Clean Energy with The Wavestar machine. Harness the Power of Wave Energy with the World’s Strongest Wave Power Concept. Oceans cover more than 70% of Earth’s surface and ocean waves carry enormous power. By utilizing the largest source of untapped clean energy, it could supply a substantial part of the world’s electricity. Wave energy is more predictable compared to wind power, the waves come and go slowly and can be forecasted 24 hours ahead. Also the production continues 6–8 hours after the wind settles. This makes wave energy an ideal complement for wind turbines and could satisfy the continuously increasing demand for renewable energy in the grid.

The concept was invented by sailing enthusiasts Niels and Keld Hansen in 2000. The challenge was to create a regular output of energy from ocean swells and waves that are 5–10 seconds apart. This was achieved with a row of half-submerged buoys, which rise and fall in turn as the wave passes, forming the iconic part of Wavestar’s design. This allows energy to be continually produced despite waves being periodic.

Continue reading “Ocean Power Plant Generates Energy From Waves — Unlimited Cheap Clean Electricity” »