Many people who are old enough to have experienced the first moon landing will vividly remember what it was like watching Neil Armstrong utter his famous quote: That’s one small step for a man, one giant leap for mankind”. Half a century later, the event is still one of the top achievements of humankind. Despite the rapid technological advances since then, astronauts haven’t actually been back to the moon since 1972.
This seems surprising. After all, when we reflect on this historic event, it is often said that we now have more computing power in our pocket than the computer aboard Apollo 11 did. But is that true? And, if so, how much more powerful are our phones?
This blog post introduces a newly published book, titled "Maxwell-Dirac Theory and Occam's Razor: Unified Field, Elementary Particles, and Nuclear Interactions".
Computer simulations using twelve synthetic bone spheres tested scenarios such as falls from various heights as well as single or double blows from rocks or bats. Along with these simulations, the authors inspected the fossil both visually and virtually using computed tomography technology.
New Study Says Many Chinese Fossil Fuel Power Plants Need To Run Low Capacity Or Retire Early - NOT Too Many For 1.5°C Goal
This paper in Nature shows that if China and India ramp up their commitments to 1.5°C compatible, then the new coal fired power plants they built or are building will need to be used at low capacity or for a shorter than usual lifetime than the industrial average of 53% capacity for 40 years. However, that isn’t really anything surprising or unexpected, for instance this NGO report from March 2019 came to the same conclusion. There are some details about the way they did the analysis and the paper that gives a new slant on it all that is illuminating but it doesn't change anything about our prospects for staying within 1.5°C.
That is actually a win, and far better than the bleak Population Bomb promoted by people like John Holdren and Paul Ehrlich just a few decades ago. Though there is still famine in parts of the world, they are parts of the world where groups opposed to science can manipulate people who don't trust outsiders or understand the technology, no differently than than distrust vaccines. The peaks and valleys of food have leveled out so famine is only going to decrease.
This selective tagging mechanism in natural antibodies has been valuable in engineering antibody-based probes that let them purify and study different types of proteins within cells. One technique, epitope tagging, involves fusing an epitope to a protein of interest and using fluorescently labeled antibodies to make those proteins visible - but only in fixed, dead cells.
Though numerical models don't always correlate with reality, a new paper states that the world can achieve a 2 degree Celsius climate-stabilizing goal and reach net-zero emissions by mid-century, without closing newer plants that, let's be honest, no country is going to close.
The venue is the auditorium (horsaal) of the Deutsches Elektronen-Synchrotron (DESY) laboratories, just west of the center of Hamburg, at Notkestrasse 85. The event starts at 5PM.
The Powering Past Coal Alliance(1) wants to phase out coal power but are hampered by limited membership who don't have to face economic realities. Finland has different energy sources available than China has. And China is not going to be bullied by Finland, Denmark, or anyone else.
Changes in spring surface air temperature can vary widely and even impact socioeconomics in developing countries so it will be important to learn how to predict the variations of spring temperatures. However, the dynamics and predictability of East Asian temperatures during boreal spring are more challenging compared to those in the other seasons.
Part of the difficulty is due to the spring predictability barrier. The predictive skill based on El Niño-Southern Oscillation decreases rapidly during boreal spring. For as long as climate change has been a concern El Niño has been considered a confounder.
A 65-year follow-up study of 6,883 patients with Multiple Sclerosis suggests they have a greater overall risk of developing cancer than the general population, with an especially high risk of cancer in respiratory organs, urinary organs and the central nervous system.
Multiple sclerosis is a lifelong disease that affects the central nervous system, especially the brain, spinal cord and optic nerves. It can lead to a wide range of symptoms, including problems with vision, arm or leg movement, sensation or balance. MS is one of the most common causes of disability in younger adults, and people with MS have on average 7 years shorter longevity.
It's generally believed that if you are going to be heavy, pear-shaped (fatter) in the waist and legs) is better than apple (fat around the chest) and a new study validates that holds true for postmenopausal even if they are not heavy and have a normal, healthy body mass index (BMI).
That requires some context. BMI is a fine population-level metric but generally useless for individuals. If you have a high BMI but know you are fit, don't think you need to shed muscle mass to lose weight.
In postmenopausal women, storing a greater proportion of body fat in the legs (pear-shaped) whether having high BMI or not was linked to a significantly decreased risk of cardiovascular disease.
We've all offered an excuse for a poor reaction or any behavior we recognize we should not have engaged in; many have rationalized it to mitigate consequences or even make it socially acceptable.
Stress, headaches, even ignorance can be proffered, but what makes an excuse plausible? In law, things are a little more clear, duress and coercion and psychological maladies have all been successful, but to families and friends it might not be as easy as convincing a jury of strangers. Especially if you do it often.
At the recent Academy of Neurology Congress, scholars reported that among 1,034 people recruited from 35 countries via an online crowdsourcing platform asked if they'd ever had an Near Death Experience, 289 answered 'yes.' When were asked for more details, using a 16 point questionnaire called the Greyson Near-Death Experience Scale, 106 reached a threshold of 7 on the Greyson NDE Scale. Some 55 percent perceived the their feeling as truly life-threatening.
Among respondents, 73 percent who claimed a near death experience said it was unpleasant, but those with a score of 7 or above on the Greyson NDE Scale had 53 percent pleasant descriptions of it.
Yes, With Climate Change, Our Generation’s Children Are Headed For A World With Nature And Wonder In It - And Their Children Too
It's so sad when people think they can't have children because of climate change. Two years ago they weren't despairing, they didn’t even give it thought - it was not an election issue in the US elections in 2016, or the UK elections in 2017 even. Now it is one of the top issues for most governments worldwide. This gives so much more hope for the future, for those who have been following it all along, but many of those who have just begun to give it serious attention for a couple of years are already despairing only three years after the Paris agreement.
But even though the U.S. EPA has written the book for how DDT is to be sprayed inside homes, it was banned here over the objections of scientists and remains controversial for environmental groups who want to ban all chemicals. A new method may make chemicals less necessary but it involves another area of science activists oppose; genetic engineering.
And that counts in journalism too. In the days of Walter Cronkite and Watergate, media enjoyed a great deal of trust, but as the public got more savvy about bias that trust declined and people began to seek out alternative sources. If media are going to be biased, people believed, it might as well be biased in ways they like.
Plasma is like a lightning bolt, when it happens underwater.
A new study explored how electrochemical cells that help recycle CO2 but whose catalytic surfaces get worn down in the process might be regenerated at the push of a button - using extreme plasmas in water. To show proof ofconcept, they deployed optical spectroscopy and modeling to analyze such underwater plasmas in detail, which exist only for a few nanoseconds, and to theoretically describe the conditions during plasma ignition.