Uncategorized
- Physics
Revisiting Einstein’s incomplete theory
New, ultraprecise measurements of single-particle trajectories confirm that there's something missing from Einstein's mathematical model for Brownian motion.
- Health & Medicine
A toast to thin blood
Moderate consumption of alcohol may make a person's blood less likely to clot.
-
19611
This article says, “the blood of people who consume 3 to 6 drinks weekly was less likely to clot in a test tube than was the blood from nondrinkers.” I wonder if there is a rebound effect that could make the blood of new abstainers even more likely to clot than that of regular nondrinkers. […]
-
19610
I would venture to suggest the reason that the pasta-fragmentation process stops. Once the strand breaks, it becomes x number of new strands, each of which is still vibrating at some residual frequency and amplitude. The mass, diameter, and length of each resultant strand might determine the wavelength and amplitude necessary to break it. If […]
- Physics
That’s the Way the Spaghetti Crumbles
Investigating how uncooked spaghetti breaks has uncovered new mechanisms behind shattering and energy concentration, with possible implications for how structures fail.
-
19609
This article makes the point that shrub intrusion into tundra reduces albedo, the percentage of reflected light, but doesn’t report actual impact on ground temperature. Albedo itself is not a good indicator of waste heat. Much of the extra absorbed sun energy is used by the shrubs for photosynthesis and the fixing of carbon and […]
- Earth
Runaway Heat?
A variety of changes in the Arctic is making the region darker and accelerating its warming climate.
- Math
Climbing a Watery Slope
A water-walking insect can propel itself up steep, slippery slopes without moving its legs.
- Humans
From the November 2, 1935, issue
Indian Pipe's waxen beauty, the need for better brakes, and a new magnetic alloy.
- Health & Medicine
About Sinuses
This Web site from Dr. Wellington S. Tichenor examines the symptoms and treatment of sinusitis and other sinus diseases, as well as the interrelated problems of allergy and asthma. The site defines sinusitis and provides information on treatment regimens, fungal sinusitis, surgery, sinusitis in children, and more. Go to: http://www.sinuses.com/
- Earth
Volcanic Suppression: Major eruptions can reduce sea level
Although scientists have known for years that major volcanic eruptions can temporarily cool Earth's climate, a team now suggests that such outbursts can temporarily cause sea level to drop for a while as well.
- Materials Science
Up to Snuff: Nanotube network fights flames
Researchers have found that infusing plastics with a network of carbon nanotubes reduces their flammability.
