Many reading tasks require individuals to not only read a document, but also to understand, learn from and retain the information in it. For this type of reading, experts recommend a process called active reading, which involves highlighting, outlining and taking notes on the text.
Heavens
ESA's XMM-Newton space observatory has watched a faint star flare up at X-ray wavelengths to almost 10 000 times its normal brightness. Astronomers believe the outburst was caused by the star trying to eat a giant clump of matter.
The flare took place on a neutron star, the collapsed heart of a once much larger star. Now about 10 km in diameter, the neutron star is so dense that it generates a strong gravitational field.
The clump of matter was much larger than the neutron star and came from its enormous blue supergiant companion star.
Heavy rains in Canada caused historic flooding in Minot, N.D. Landsat satellite images taken before and during the flooding reveal the water's extent.
The Souris River finally crested on June 26, but not before more than 4,000 homes and hundreds of businesses were flooded. About one-fourth of Minot's 40,000 residents evacuated the city. Residents expect a long recovery as the river slowly retreats.
The Souris River reading at Minot's Broadway Bridge around 11:00 p.m. on June 25 reached nearly four feet higher than the all-time high set in 1881.
The Tropical Rainfall Measuring Mission (TRMM) satellite passed over Tropical Depression Meari as it neared a landfall in southwestern North Korea on June 26. TRMM did not observe any heavy rainfall, but did see moderate rainfall with the system.
By combining advanced laser technologies in a new way, physicists at the National Institute of Standards and Technology (NIST) have generated microwave signals that are more pure and stable than those from conventional electronic sources. The apparatus could improve signal stability and resolution in radar, communications and navigation systems, and certain types of atomic clocks.
Most industry executives, military planners, research managers or venture capitalists charged with assessing the potential of an R&D project probably are familiar with the wry twist on Arthur C. Clarke's third law*: "Any sufficiently advanced technology is indistinguishable from a rigged demo."
ONTARIO, CANADA—Greenhouse vegetable production in North America has more than doubled in the past 10 years. While heavy investments have been made in modern greenhouses, improved cultivation technologies are essential for producers to realize the high productivity potential afforded by the improved facilities.
Scientists of the MINOS experiment at the Department of Energy's Fermi National Accelerator Laboratory announced today (June 24) the results from a search for a rare phenomenon, the transformation of muon neutrinos into electron neutrinos. The result is consistent with and significantly constrains a measurement reported 10 days ago by the Japanese T2K experiment, which announced an indication of this type of transformation.
NASA satellite imagery revealed that Haima has regained minimal tropical storm status with some powerful thunderstorms south of its center. Haima is moving west through the Gulf of Tonkin in the South China Sea between Hainan Island and Vietnam and is expected to bring heavy rains to Vietnam this weekend.
There are going to be two landfalling tropical cyclones in the Northwestern Pacific Ocean basin this weekend, Haima in Vietnam and Tropical Storm Meari in North Korea. NASA infrared satellite imagery today shows the Meari is stronger than Haima.
HOUSTON – (June 23, 2011) – The remoteness and resource limitations of spaceflight pose a serious challenge to astronaut health care. One solution is ultrasound.
The Northwestern Pacific Ocean is active with two tropical cyclones today, Tropical Storm Meari near the Philippines, and Tropical Depression Haima moving over China and now toward Vietnam. NASA's Aqua satellite passed over the region on June 22 and captured an infrared image of both storms in one image.
LOS ALAMOS, New Mexico, June 23, 2011—Two papers in this week's issue of Science report the first oxygen and nitrogen isotopic measurements of the Sun, demonstrating that they are verydifferent from the same elements on Earth. These results were the top two priorities of NASA's Genesis mission, which was the first spacecraft to return from beyond the Moon, crashing in the Utah desert in 2004 after its parachute failed to deploy during re-entry.
Small heads, large bodies, and a slow metabolism -- these are the characteristics that make us think of dinosaurs as dull, lethargic and cold-blooded giants. However, this image seems to be deceiving. These giant saurians that have been extinct for 65 million years may have been high-performance models of evolution. In cooperation with colleagues from the US, researchers from the University of Bonn have just determined that the body temperature of some large herbivorous dinosaurs was between 36 and 38 degrees Celsius.
Betelgeuse, a red supergiant in the constellation of Orion, is one of the brightest stars in the night sky. It is also one of the biggest, being almost the size of the orbit of Jupiter — about four and half times the diameter of the Earth's orbit. The VLT image shows the surrounding nebula, which is much bigger than the supergiant itself, stretching 60 billion kilometres away from the star's surface — about 400 times the distance of the Earth from the Sun.