QED: First Direct Evidence Of High Energy Light-by-light Scattering, Where Photons Interact And Change Direction
Counselors, lawyers and therapists are aggressively pushing it as the fad diagnosis of 2017, but what behaviors and descriptors can help identify people with high nomophobia ? A new paper compares how people considered to have high and low nomophobic tendencies perceive and value their smartphones.
With all the tense situation about North Korea, I thought I should do a new post about the situation there. I'm doing this as part of my "Doomsday Debunked" articles I do to help people who are often very scared that the world will end in one way or another. First this is not a risk of global nuclear war. It’s nothing like the Cuban missile crisis. There we had two major powers facing each other on a hair-trigger. And each had the capability of destroying the other’s military capabilities.-->
Have you wondered why we can't see the Apollo landing sites from Earth? Moon is so far away that even the ISS at around 108 meters in length would span just over one pixel if Hubble were to photograph it on the Moon at its highest resolution. From NASA:
Can Hubble see the Apollo landing sites on the Moon?
No, Hubble cannot take photos of the Apollo landing sites.
“An object on the Moon 4 meters (4.37 yards) across, viewed from HST, would be about 0.002 arcsec in size. The highest resolution instrument currently on HST is the Advanced Camera for Surveys at 0.03 arcsec. So anything we left on the Moon cannot be resolved in any HST image. It would just appear as a dot.”-->
Puzzle: Which Tank Fills First? What Happens If You Increase The Flow Rate? Someone Tried - With A 3D Printer
You may have seen this tank filling puzzle that's gone viral. But have you wondered what happens at a faster flow rate? Someone has tried it out, with a 3D printer. First though, let's look at the original puzzle.
Here it is.
Look closely, as it says.
Most people answer “G”.
If that's your answer too, take another close look. Many of the pipes are blocked, The line that blocks off D from C is not a mistake.
To find the real answer - well first, it looks like it's just a drip at a low flow rate from the drawing. So let's assume that..
From A to B to C is straightforward. None of them can fill before the next one.-->
Given that more cancers are likely in the developing world, the search is on for treatments that are simple and inexpensive to manufacture. The answer may lie in herbal medicine. The problem, as always, is that while there are numerous anecdotes about those, there are few studies.
Weight is not the best way to understand metabolic health, according to an analysis of lean, overweight and obese people.
A new paper claims that ~20 percent of normal weight adults are still metabolically unhealthy and have a higher risk of mortality and/or cardiovascular events than metabolically healthy obese subjects. Oddly, a reduced accumulation of fat in the lower body puts lean people at risk.
One size does not fit all
A cold beer on a hot day or a whisky nightcap beside a coal fire. A well earned glass can loosen your thinking until you feel able to pierce the mysteries of life, death, love and identity. In moments like these, alcohol and the cosmic can seem intimately entwined.
So perhaps it should come as no surprise that the universe is awash with alcohol. In the gas that occupies the space between the stars, the hard stuff is almost all-pervasive. What is it doing there? Is it time to send out some big rockets to start collecting it?-->
iMPACT (innovative Medical Proton Achromatic Calorimeter and Tracker) is a project led by Piero Giubilato, who won an ERC consolidator grant from the European Union. The project aims to develop a high resolution and high rate (>100 kHz/cm2) proton Computed Tomography (pCT) scanner. The scanner will combine a highly-segmented range calorimeter made of PVT scintillators, for energy measurements, and a silicon pixel tracker, for trajectory reconstructions.
A new study suggests nature's ecological web is so tenuous that it's amazing anything survived this long; even the smell of a predator can have disastrous effects in populations of small size in flies. They spend less time eating, more time being vigilant, have less sex, and produce fewer offspring.