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Sep 19, 2023

New research offers insight about the reason mitochondria

Posted by in categories: biotech/medical, genetics

New research provides insight about the bedrock scientific principle that mitochondrial DNA -; the distinct genetic code embedded in the organelle that serves as the powerplant of every cell in the body -; is exclusively passed down by the mother.

The study, a collaboration among Oregon Health & Science University and other institutions, published today in the journal Nature Genetics.

Scientists have long recognized the fact that mitochondrial DNA, or mtDNA, comes exclusively from egg cells in humans, meaning only the mother contributes the genetic code carried by thousands of mitochondria necessary for energy production in every cell in the body.

Sep 19, 2023

Strange Mathematical Pattern Found in The Cells of The Human Body

Posted by in categories: biotech/medical, mathematics, neuroscience

From the oxygen-carrying corpuscles in our blood to the branching neurons that govern our thoughts, our body is built of a dazzling variety of cells.

Researchers from institutions in Germany, Canada, Spain, and the US have published a comprehensive study of how many individual cells of each type there are in typical bodies.

Based on an exhaustive analysis of over 1,500 published sources, most adult males contain a total of around 36 trillion cells, while adult females tend to have some 28 trillion cells. A 10-year-old child, by comparison, would have in the region of 17 trillion.

Sep 19, 2023

YouTuber builds DIY ionic thruster that actually works

Posted by in category: space travel

Now, a YouTuber called Jay Bowles who goes by the name Plasma Channel built one and posted the process on his channel on Saturday. He started his video off by saying he was partially inspired to build the thruster by MIT’s model developed in 2018.

This version of the technology actually made a vehicle fly. “Their design was brilliant,” said Bowles in his video. “And it included aspects of a decades-old device called an ionic lifter.”

Sep 19, 2023

Fact Check: Do Warp Drive Engines Violate the Laws of Physics?

Posted by in categories: alien life, mathematics, physics

The universe is bigger than you think.

This means any deep-space future awaiting humanity outside our solar system will remain beyond the span of a single life until we develop a means of propulsion that outclasses conventional rockets. And, when three studies rocked the world earlier this year, it felt like a dream come true: Warp drive was no longer science fiction, potentially unlocking a theoretical basis to build faster-than-light warp drive engines that could cut a trip to Mars down to minutes.

However, a recent study shared in a preprint journal cast doubt on the theory, pointing to a gap in the math that could put the viability of a physical warp drive back into the realm of speculation.

Sep 19, 2023

Graphene ribbons advance twistronics

Posted by in category: materials

A new technique allows for much better control of twist angle and strain in layered two-dimensional materials.

Sep 19, 2023

NASA spacecraft flies right through sun explosion, captures footage

Posted by in category: space

NASA’s Parker Solar Probe zoomed through a coronal mass ejection from the sun, a strong ejection of hot gas. The spacecraft captured footage of the dramatic solar system event.

Sep 19, 2023

Study: MXene versatile material successfully mass-produced

Posted by in category: materials

MaxKolmeto / iStock.

A team of researchers led by Seung-Cheol Lee, director of the Indo-Korea Science and Technology Center(IKST) at the Korea Institute of Science and Technology (KIST), developed a method to predict the distribution of molecules on the surface using the magnetoresistance property of MXene, according to a statement by the scientists.

Sep 19, 2023

Underwater robots have been secured for the US’s first floating offshore wind farm

Posted by in category: robotics/AI

Autonomous underwater robots have been contracted to survey the site of the US’s first floating offshore wind farm.

In December, Norwegian energy giant Equinor won a 2-gigawatt (GW) lease in Morro Bay, California, in the first-ever offshore wind lease sale on the US West Coast. It was also the first US sale to support commercial-scale floating offshore wind development.

The Morro Bay project has the potential to generate enough energy to power around 750,000 US households.

Sep 19, 2023

Building AI An Artificial, Multisensory Integrated Neuron “Brain”

Posted by in categories: biological, robotics/AI

This post is also available in: he עברית (Hebrew)

Penn State researchers have recently harnessed the biological concept for application in artificial intelligence to develop the first artificial, multisensory integrated neuron, which may forever change the world of AI and robotics.

Associate professor of engineering science and mechanics at Penn State Saptarshi Das explains: “Robots make decisions based on the environment they are in, but their sensors do not generally talk to each other. A collective decision can be made through a sensor processing unit, but is that the most efficient or effective method? In the human brain, one sense can influence another and allow the person to better judge a situation.”

Sep 19, 2023

Breast cancer often spreads to the spine — newfound stem cell can explain why

Posted by in category: biotech/medical

A stem cell that contributes to vertebra formation also encourages the growth of tumours that move to the backbone from elsewhere.

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