Blog

Page 9793

May 18, 2018

Can we get 100 percent of our energy from renewable sources?

Posted by in categories: solar power, space, sustainability

Is there enough space for all the wind turbines and solar panels to provide all our energy needs? What happens when the sun doesn’t shine and the wind doesn’t blow? Won’t renewables destabilise the grid and cause blackouts?

In a review paper last year in the high-ranking journal Renewable and Sustainable Energy Reviews, researcher Benjamin Heard and colleagues presented their case against 100 percent renewable electrical systems. They doubted the feasibility of many of the recent scenarios for high shares of renewable energy, questioning everything from whether renewables-based systems can survive with low sun and low wind, to the ability to keep the grid stable with so much variable generation.

Now, scientists have hit back with their response to the points raised by Heard and colleagues. The researchers from the Karlsruhe Institute of Technology and collaborators have analysed hundreds of studies to answer each of the apparent issues. They demonstrate that there are no roadblocks to a 100 percent renewable future.

Read more

May 18, 2018

Large study to study impact on early brain development of financial assistance to low-income mothers

Posted by in categories: finance, neuroscience

Important new study to track — “The team will start recruiting the first of 1,000 low-income mothers next week…Of that 1,000, roughly half will be randomly selected to receive an unconditional $333 a month, while the others will form a control group that will receive $20. The money, which is completely unconditional, will be loaded onto a pre-paid debit card every month for 40 months, on the date of the child’s birthday. The hypothesis is that this steady stream of payments will make a positive difference in the cognitive and emotional development of the children whose mothers receive it”


___ Does growing up poor harm brain development? (The Economist): “Plenty of evidence suggests that growing up poor, living through these kinds of scrapes, has a detrimental impact on child development. Children from rich families tend to have better language and memory skills than those from poor families. More.

Read more

May 18, 2018

The Rich Are Betting On Living to 100

Posted by in category: life extension

Money might not buy love, but it can buy better health. And, to live as long as possible, the world’s wealthy are willing to pay up.


The wealthy are willing to pay for a longer life. The successor to income inequality is longevity inequality.

Read more

May 18, 2018

Some hard numbers on science’s leadership problems

Posted by in category: science

Scientists pride themselves on being keen observers, but many seem to have trouble spotting the problems right under their noses. Those who run labs have a much rosier picture of the dynamics in their research groups than do many staff members working in the trenches, according to a Nature survey of more than 3,200 scientists. The results suggest that a lack of training in lab and personnel management is one of the strongest contributors to an unhealthy lab culture.


A Nature survey of 3,200 scientists reveals the tensions bubbling in research groups around the world.

Read more

May 18, 2018

Space tourism for the people: become a virtual reality astronaut

Posted by in categories: space, virtual reality

VR companies around the world are planning to offer live views of the Earth from space within the next few years.

Continue reading “Space tourism for the people: become a virtual reality astronaut” »

May 18, 2018

Spacewatch: China readies for part one of mission to far side of the moon

Posted by in category: space

Magpie Bridge relay satellite will communicate with lunar lander to be deployed later in the year.

Read more

May 18, 2018

2nd World Intelligence Congress envisions liberation from labor through AI

Posted by in categories: business, government, robotics/AI

Government officials, business leaders and academics attending China’s second World Intelligence Congress, abbreviated WIC 2018, envisioned people’s liberation from labor with the help of artificial intelligence.

With the theme “The Age of Intelligence: New Progress, New Trends, New Efforts,” the three-day event began in north China’s Tianjin municipality on Wednesday.

Lin Nianxiu, deputy director of China’s National Development and Reform Commission (NDRC), said at the opening of the congress that the aspirations to make machines more intelligent and liberate human beings from as much labor as possible have been major impetuses driving worldwide technological advances and industrial innovation.

Read more

May 18, 2018

Self-assembling 3D battery would charge in seconds

Posted by in categories: energy, nanotechnology

The world is a big place, but it’s gotten smaller with the advent of technologies that put people from across the globe in the palm of one’s hand. And as the world has shrunk, it has also demanded that things happen ever faster—including the time it takes to charge an electronic device.

A cross-campus collaboration led by Ulrich Wiesner, professor of engineering in the at Cornell University, addresses this demand with a novel architecture that has the potential for lightning-quick charges.

The group’s idea: Instead of having the batteries’ anode and cathode on either side of a nonconducting separator, intertwine the components in a self-assembling, 3D gyroidal structure, with thousands of nanoscale pores filled with the elements necessary for energy storage and delivery.

Read more

May 17, 2018

‘Explosive’ eruption at Hawaii volcano’s summit shoots ash more than five miles high

Posted by in category: futurism

The effects of the short-lived explosion were limited, but scientists warned there may be more to come.

Read more

May 17, 2018

Astronomers release most complete ultraviolet-light survey of nearby galaxies

Posted by in categories: evolution, space

Capitalizing on the unparalleled sharpness and spectral range of NASA’s Hubble Space Telescope, an international team of astronomers is releasing the most comprehensive, high-resolution ultraviolet-light survey of nearby star-forming galaxies.

The researchers combined new Hubble observations with archival Hubble images for 50 star-forming spiral and dwarf in the local universe, offering a large and extensive resource for understanding the complexities of and . The project, called the Legacy ExtraGalactic UV Survey (LEGUS), has amassed star catalogs for each of the LEGUS galaxies and cluster catalogs for 30 of the galaxies, as well as images of the galaxies themselves. The data provide detailed information on young, massive and star clusters, and how their environment affects their development.

“There has never before been a star cluster and a stellar catalog that included observations in ultraviolet light,” explained survey leader Daniela Calzetti of the University of Massachusetts, Amherst. “Ultraviolet light is a major tracer of the youngest and hottest star populations, which astronomers need to derive the ages of stars and get a complete stellar history. The synergy of the two catalogs combined offers an unprecedented potential for understanding star formation.”

Continue reading “Astronomers release most complete ultraviolet-light survey of nearby galaxies” »