-
How Cells Communicate
Scientists at UCLA and Charles R. Drew University of Medicine and Science have discovered a possible method by which cancer cells and dying cells communicate with nearby normal nerve cells without being physically connected to them. Normal communication is done by chemical, hormonal or other physical connection. What this implies is unclear but it is…
-
Gym or Raking Leaves?
How important is rigorous gym exercise versus ordinary work day exercise/tasks? New research at Oregon State University suggests the health benefits of small amounts of activity – even as small as one- and two-minute increments that add up to 30 minutes per day – can be just as beneficial as longer periods of physical exercise…
-
Urban Heat Climate Effects
An urban heat island is a metropolitan area that is significantly warmer than its surrounding rural areas due to human activities. The temperature difference usually is larger at night than during the day, and is most apparent when winds are weak. The main cause of the urban heat island is modification of the land surface…
-
Dung Beetle
Dung beetle occurs in coastal dunes and marshes around the Mediterranean Basin. They are also known as scarab beetles that were sacred to the ancient Egyptians. These insects roll balls of dung across the earth just as the sun god Ra rolled across the sky. A team of scientists from South Africa and Sweden have…
-
The Braided Sun
The Sun is the center of our Solar System. Scientists have long puzzled over why the surface of the sun is cooler than its corona, the outer hazy atmosphere visible during a solar eclipse. Now thanks to a five-minute observation by a ultraviolet telescope they have some magnetic answers. A rocket-borne camera has provided some…
-
Greenland Ice May Foretell Future Global Warming Results
When global warming is discussed, many will try to predict how much the ice cap will melt and how much the seas will rise. There are many variables in this calculation. A new study by an international team of scientists analyzing ice cores from the Greenland ice sheet going back in time more than 100,000…
-
Roadmap for Fusion
ITER (International Thermonuclear Experimental Reactor) is an international nuclear fusion research and engineering project, which is currently building the world’s largest experimental tokamak nuclear fusion reactor at the Cadarache facility in the south of France. The European Fusion Development Agreement (EFDA) has published a roadmap which outlines how to supply fusion electricity to the grid…
-
West Antarctica Vulnerability
Radiocarbon dates of tiny fossilized marine animals found in Antarctica’s seabed sediments offer new clues about the recent rapid ice loss from the West Antarctic Ice Sheet and help scientists make better future predictions about sea-level rise. This region of the icy continent is thought to be vulnerable to regional climate warming and changes in…
-
Aerosols vs GreenHouse Gases
There’s a tricky chemical trade-off at work in our skies. As greenhouse gases provide their famous warming effect to Earth’s surface, aerosol pollution in the atmosphere actually partly counteracts it. Aerosols are tiny particles suspended in the air, both natural and industrial, including sea salt, mineral dust, ash, soot, sulphates, nitrates, and black carbon. They…
-
The Rise of Mammals in a Warming Land
If it gets warmer what animals may benefit? The climate changes depicted by climatologists up to the year 2080 will benefit most mammals that live in northern Europe’s Arctic and sub-Arctic land areas today if they are able to reach their new climatic ranges. This is the conclusion drawn by ecologists at Umeå University in…