Menu

Blog

Page 3292

Nov 19, 2022

Activity of dying brain shines light on near-death experiences

Posted by in categories: biological, neuroscience

The first recorded brain activity of a person during their death suggests a biological trigger for near-death experiences.

Nov 19, 2022

Making Oxygen Out of Thin Air

Posted by in category: sustainability

Circa 2015 face_with_colon_three


It’s possible to convert carbon dioxide to oxygen in just one step.

Nov 19, 2022

Algae-filled panels could generate oxygen and electricity while absorbing CO2

Posted by in categories: electronics, sustainability

Greenfluidics, a Mexico-based startup, promises newer, greener bio panels that can provide fresh oxygen and considerably bring down your power consumption while also delivering biomass-based fuel to you, New Atlas has reported.

With the world trying to reduce carbon emissions, algae have taken quite the center stage in capturing the carbon dioxide being released. From using algal blooms as large carbon capture sites to even powering electronic devices using algae, researchers are trying to use these green organisms everywhere.

Nov 19, 2022

Artificial Photosynthesis Advance: Standalone Device Converts Sunlight, CO2 and Water Into Clean Fuel

Posted by in categories: solar power, sustainability

Researchers have developed a standalone device that converts sunlight, carbon dioxide, and water into a carbon-neutral fuel, without requiring any additional components or electricity.

The device, developed by a team from the University of Cambridge, is a significant step toward achieving artificial photosynthesis.

Photosynthesis is how plants and some microorganisms use sunlight to synthesize carbohydrates from carbon dioxide and water.

Nov 19, 2022

Artificial Neural Networks Learn Better When They Spend Time Not Learning at All

Posted by in category: robotics/AI

Summary: “Off-line” periods during AI training mitigated “catastrophic forgetting” in artificial neural networks, mimicking the learning benefits sleep provides in the human brain.

Source: UCSD

Depending on age, humans need 7 to 13 hours of sleep per 24 hours. During this time, a lot happens: Heart rate, breathing and metabolism ebb and flow; hormone levels adjust; the body relaxes. Not so much in the brain.

Nov 19, 2022

Dead stars covered in space debris could reveal the origins of planets

Posted by in categories: alien life, chemistry

Breadcrumbs…


When University of Cambridge astronomer Amy Bonsor and her colleagues studied the spectrum of light from white dwarfs — the burned-out remains of small stars — they noticed flecks of heavier elements on the stars’ surfaces where there should have been only a glowing expanse of helium and hydrogen. The astronomers realized the stars’ surfaces were littered with debris from asteroids and comets that had fallen into the stars, visible on the surface just briefly before sinking into the depths.

The chemical makeup of those planet crumbs — visible in their spectra, the specific wavelengths of light each chemical emits — suggests that the building blocks of planets are as ancient as a star system itself, rather than things that form later from the disk of material orbiting the star.

Continue reading “Dead stars covered in space debris could reveal the origins of planets” »

Nov 19, 2022

Julian Barbour | The End of Time

Posted by in category: quantum physics

Theoretical physicist and author, Julian Barbour, talks to us about why time is an illusion and what this means for the quantum mechanics of the universe.

#time #quantum #physics #interview #iaitv.

Continue reading “Julian Barbour | The End of Time” »

Nov 19, 2022

Julian BARBOUR — Does Time Exist?

Posted by in category: futurism

Julian Barbour, visiting professor at the University of Oxford and the author of The End of Time, addresses the question, Does Time Exist? Barbour explores t…

Nov 19, 2022

The world’s first all-electric lithium mine is coming to Canada

Posted by in category: futurism

It has been estimated that by 2030, even if all existing mines continue at their normal rate of production, there still will be barely enough metal to satisfy half of global demand.

Nov 19, 2022

The fastest swimming soft robots look like a butterfly and work like a hair clip

Posted by in category: robotics/AI

These soft robots can do the butterfly stroke.

A team of scientists at North Carolina State University (NCSU) has developed two butterfly-shaped soft robots capable of swimming at 1.70 and 3.74 body lengths per second (BL/s). They are being referred to as the fastest swimming soft machines in the world because until now, soft robots were known to swim at a maximum speed of one body length per second.


Devrimb/iStock.

Continue reading “The fastest swimming soft robots look like a butterfly and work like a hair clip” »