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Jun 7, 2023

New Satellite Successfully Beams Power From Space

Posted by in categories: computing, satellites, solar power, sustainability

Solar power is the fastest-growing form of renewable energy and currently accounts for 3.6% of global electricity production today. This makes it the third largest source of the renewable energy market, followed by hydroelectric power and wind. These three methods are expected to grow exponentially in the coming decades, reaching 40% by 2035 and 45% by 2050. Altogether, renewables are expected to account for 90% of the energy market by mid-century, with solar accounting for roughly half. However, several technical challenges and issues need to be overcome for this transition to occur.

The main limiting factor for solar power is intermittency, meaning it can only collect power when sufficient sunlight is available. To address this, scientists have spent decades researching space-based solar power (SBSP), where satellites in orbit would collect power 24 hours a day, 365 days a year, without interruption. To develop the technology, researchers with the Space Solar Power Project (SSPP) at Caltech recently completed the first successful wireless power transfer using the Microwave Array for Power-transfer Low-orbit Experiment (MAPLE).

Continue reading “New Satellite Successfully Beams Power From Space” »

Jun 7, 2023

Engineers grow pancreatic “organoids” that mimic the real thing

Posted by in categories: biotech/medical, engineering

Year 2021 😗😁

MIT engineers, in collaboration with scientists at Cancer Research UK Manchester Institute, have developed a new way to grow tiny replicas of the pancreas, using either healthy or cancerous pancreatic cells. Their new models could help researchers develop and test potential drugs for pancreatic cancer, which is currently one of the most difficult types of cancer to treat.

Using a specialized gel that mimics the extracellular environment surrounding the pancreas, the researchers were able to grow pancreatic “organoids,” allowing them to study the important interactions between pancreatic tumors and their environment. Unlike some of the gels now used to grow tissue, the new MIT gel is completely synthetic, easy to assemble and can be produced with a consistent composition every time.

Continue reading “Engineers grow pancreatic ‘organoids’ that mimic the real thing” »

Jun 7, 2023

Engineered Liver-On-A-Chip Platform to Mimic Liver Functions and Its Biomedical Applications: A Review

Posted by in categories: biotech/medical, chemistry, computing, engineering

Year 2019 😗😁

Hepatology and drug development for liver diseases require in vitro liver models. Typical models include 2D planar primary hepatocytes, hepatocyte spheroids, hepatocyte organoids, and liver-on-a-chip. Liver-on-a-chip has emerged as the mainstream model for drug development because it recapitulates the liver microenvironment and has good assay robustness such as reproducibility. Liver-on-a-chip with human primary cells can potentially correlate clinical testing. Liver-on-a-chip can not only predict drug hepatotoxicity and drug metabolism, but also connect other artificial organs on the chip for a human-on-a-chip, which can reflect the overall effect of a drug. Engineering an effective liver-on-a-chip device requires knowledge of multiple disciplines including chemistry, fluidic mechanics, cell biology, electrics, and optics.

Jun 7, 2023

Microfluidic device with brain extracellular matrix promotes structural and functional maturation of human brain organoids Communications

Posted by in categories: biotech/medical, neuroscience

Year 2021

Brain organoids derived from human pluripotent stem cells can model human brain development and disease, though current culture systems fail to ensure reliable production of high-quality organoids. Here the authors combine human brain extracellular matrix and culture in a microfluidic device to promote structural and functional maturation of human brain organoids.

Jun 7, 2023

Crocodile found to have made herself pregnant

Posted by in category: futurism

Baby crocodile Jesus 🐊.

Researchers have found the first case of a crocodile who made herself pregnant.

Jun 7, 2023

ChatGPT Maker OpenAI Is Staying Private So It Can Make ‘Strange’ Decisions

Posted by in categories: policy, robotics/AI

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Jun 7, 2023

Is there an infinite universe? According to scientists, our universe has no beginning

Posted by in categories: cosmology, evolution, quantum physics, singularity

The Big Bang, traditionally considered the birth of the universe about 14 billion years ago, is being questioned. Physicist Bruno Bento and his team have proposed compelling research suggesting the universe may have always existed, and the Big Bang may merely be a significant event in its continuous evolution.

Bruno Bento and his colleagues set out to examine what the universe’s inception might have looked like without a Big Bang singularity. They grappled with contradictions arising when comparing accepted theories, particularly those dealing with quantum physics and general relativity. While quantum physics has accurately described three of the four fundamental forces of nature, it struggles to incorporate gravity. On the other hand, general relativity offers a comprehensive explanation of gravity, but falters when dealing with black holes’ centers and the universe’s genesis.

These contentious areas, termed “singularities,” are points in space-time where established physical laws cease to apply. Intriguingly, computations indicate an immense gravitational pull within singularities, even on a minuscule scale.

Jun 7, 2023

Mathematicians end decades-long quest to find elusive ‘vampire einstein’ shape

Posted by in category: mathematics

Researchers have discovered a new 14-sided shape called the Spectre that can be used to tile a surface without ever creating a repeating pattern, ending a decades’ long mathematical hunt.

Jun 7, 2023

Hundreds of ancient, invisible structures discovered near our galaxy’s center

Posted by in category: cosmology

Radio astronomers have discovered hundreds of long, thin structures emanating from our galaxy’s supermassive black hole.

Jun 7, 2023

A Personal Flying Vehicle Prototype Can Fly You at 160 MPH

Posted by in category: transportation

A team of Washington State University (WSU) researchers is working with ZEVA Aero, a Tacoma-based start-up, and testing components to create a single-passenger, electric vertical takeoff and landing (eVTOL) aircraft, taking us one step closer to turning that dream into reality.

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