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May 2, 2023

The Israelis bringing us big science in little soundbites

Posted by in categories: biotech/medical, evolution, science

Forget about evolution, climate change or vaccines – what makes people really lose their mind, apparently, is cats.

“We’ve had posts that have affected people’s lives in a very substantial way, including posts that went beyond the virtual world. People really got threats or disrespectful comments,” says Yomiran Nissan.

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May 2, 2023

Bio-nano approach flips artificial photosynthesis for hydrogen on its head

Posted by in categories: biological, nanotechnology, solar power, sustainability

An artificial photosynthesis system that combines semiconducting nanoparticles with a non-photosynthetic bacterium could offer a promising new route for producing sustainable solar-driven hydrogen fuel.

Other artificial photosynthesis systems that integrate nanomaterials into living microbes have been developed before, which reduce carbon dioxide or produce hydrogen, for example. However, usually it is the microorganism itself that makes the product via a metabolic pathway, which is aided by a light-activated nanomaterial that supplies necessary electrons.

Now, the labs of Kara Bren and Todd Krauss at the University of Rochester, US, have turned this concept on its head. They have designed a new hybrid bio-nano system that combines a finely-tuned photocatalytic semiconducting nanoparticles to make hydrogen with a bacterium which, while it does not photosynthesise or make hydrogen itself, it provides the necessary electrons to the nanomaterial to synthesise hydrogen.

May 2, 2023

Scientists Detect Brain Activity in Dying People Linked to Dreams, Hallucinations

Posted by in category: neuroscience

“Our study may be as good as it will ever get for finding neural signatures of near-death consciousness,” said the study’s senior author.

May 2, 2023

Couple unearth one of world’s greatest fossil finds in mid-Wales

Posted by in category: evolution

Discovery could help plug gaps in understanding of evolution after Cambrian explosion more than 500m years ago.

May 2, 2023

This hydrogen aircraft could really work

Posted by in category: transportation

Aviation punches above its weight when it comes to greenhouse emissions — it is by far the highest emission form of transportation. Our modern mega planes may be the most efficient they’ve ever been, but in 2019, they still churned out over 915 million tonnes of carbon dioxide.

To make matters worse, one of our best zero-emission alternatives — hydrogen — is far too heavy and bulky to build a usable airplane. Or at least that is what we thought.

The California startup HyPoint recently announced their plan to make a hydrogen-powered aircraft with nearly three times the range of a turboprop commuter jet.

May 2, 2023

A Lucid Death: Sparks of Consciousness Detected in Dying Brains

Posted by in categories: biotech/medical, neuroscience

Upon removal of ventilator support, two of the patients showed an increase in heart rate along with a surge of gamma wave activity, considered the fastest brain activity and associated with consciousness.

Furthermore, the activity was detected in the so-called hot zone of neural correlates of consciousness in the brain, the junction between the temporal, parietal and occipital lobes in the back of the brain. This area has been correlated with dreaming, visual hallucinations in epilepsy, and altered states of consciousness in other brain studies.

May 2, 2023

Watch DARPA’s Maneuverable Sniper Bullet Hit Its Target

Posted by in category: military

In this video, the YouTube channel Dark Footage explains and demonstrates how the small-caliber guided bullet was developed and how accurate it is. As explained in the description box, this system combines a movable bullet with a guidance framework that can alter the bullet’s path after it has been fired. This guarantees the bullet reaches its target no matter what. Yes, this means both experienced and inexperienced shooters can hit a moving target using the technology.

May 2, 2023

‘Raw’ data show AI signals mirror how the brain listens and learns

Posted by in category: robotics/AI

New research from the University of California, Berkeley, shows that artificial intelligence (AI) systems can process signals in a way that is remarkably similar to how the brain interprets speech, a finding scientists say might help explain the black box of how AI systems operate.

Using a system of electrodes placed on participants’ heads, scientists with the Berkeley Speech and Computation Lab measured as participants listened to a single syllable— bah. They then compared that brain activity to the signals produced by an AI system trained to learn English.

“The shapes are remarkably similar,” said Gasper Begus, assistant professor of linguistics at UC Berkeley and lead author on the study published recently in the journal Scientific Reports. “That tells you similar things get encoded, that processing is similar.”

May 2, 2023

ISpace Loses Contact With Lunar Lander During Historic Moon Landing Attempt

Posted by in category: space travel

iSpace, a private space company based in Japan, lost contact with its Hakuto-R spacecraft as it attempted to become the first private mission to land on the moon this morning. “We have to assume that we could not complete the landing on the lunar surface,” iSpace CEO and founder Takeshi Hakamada said during a livestream. “Our engineers will continue to investigate the situation, and we will update you with further information when we finish the investigation.”

Hakuto-R launched on a SpaceX Falcon 9 rocket last December. It took a long but efficient route, looping way out past the moon before using several orbital adjustments and the gravity of the Earth, moon, and sun to enter lunar orbit last month. On April 13, after a few more final adjustments, it locked into a circular orbit 100 kilometers above the lunar surface.

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May 2, 2023

Lazareth LMV 496 Flying Motorcycle With Jet Turbines In The Wheels

Posted by in category: drones

The “La Moto Volante” – the Flying Motorcycle is based on his Lazareth LM 847 with a 350kW, 4.7-litre Maserati V8 that was unveiled at the Geneva Motor Show in March 2016. At the center of each wheel hub is a powerful jet turbine, exhaust facing downward, similar to a quadcopter drone, but with much more power.

Source/image(PrtSc): Lazareth Auto-Moto