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Feb 11, 2023

Gabriel Kreiman — Computational Confessions of the Human Brain

Posted by in categories: biotech/medical, robotics/AI

Gabriel Kreiman is a Professor at Harvard Medical School. He is on faculty at Children’s Hospital and the Center for Brain Science at Harvard University. He is Associate Director and Thrust Leader in the Harvard/MIT Center for Brains, Minds, and Machines. He received his MSc and PhD from the California Institute of Technology and pursued postdoctoral work with Professor Poggio at MIT.

The Kreiman laboratory combines behavioral metrics, neurophysiological recordings and computational models to understand cognitive function and to build biologically inspired Artificial Intelligence systems. Kreiman’s work has focused on two main themes: understanding the transformation of pixel-like inputs into rich and complex visual percepts; and elucidating the subjectively filters incoming inputs to create lasting narratives that constitute the fabric of our personal experiences and knowledge.

Feb 11, 2023

The Nanorobot Surgeon You Can Swallow

Posted by in categories: biotech/medical, robotics/AI

In 1959, Richard Feynman made the famous assertion that one day we will be able to swallow the surgeon. Advancements in nanomedicine are making that dream come true. Nanoroboticist Metin Sitti shows the tiny robot that can take pictures, biopsy, and deliver medicine inside of you.

Watch the full program here: https://youtu.be/FzFY5ms3AUc.
Original program date: May 30, 2013

Continue reading “The Nanorobot Surgeon You Can Swallow” »

Feb 11, 2023

Nanotechnology: Hacking Humans, Its Potential, and Real Risks

Posted by in categories: bioengineering, biotech/medical, cybercrime/malcode, nanotechnology

Science fiction has become a reality with recent developments toward biohacking through nanotechnology. Soon, science and industries may soon realize the potential of human hacking… but at what risk versus reward? Medical nanotechnology is one of these such topics. Many experts believe nanotechnology will pave the way for a bright, new future in improving our wellbeing. Yet, at the core of this biohacking are machines and as we’ve seen with other technologies — there are very real risks of malicious intent. In this video, we share some of the applications being developed combining nanotechnology and medicine. We also look at the potential risks found in the practice and how we may mitigate issues before they’re problematic. We also share how companies can reduce security flaws and curb public perception so the nanotechnology industry can flourish without major setbacks. Want to learn more about this budding area of science and medicine?

See our accompanying blog post for the details and be sure to dig around the site, here:

Continue reading “Nanotechnology: Hacking Humans, Its Potential, and Real Risks” »

Feb 11, 2023

Arch-Conspirator review: Ancient Greek tragedy spun into sci-fi gold

Posted by in category: habitats

Veronica Roth (Tor)

THERE isn’t much world-building in Veronica Roth’s sci-fi retelling of Sophocles’s classic Greek tragedy Antigone. Then again, in Arch-Conspirator, there isn’t much world. A dusty dystopian city (Thebes in the original, but it isn’t clear where we are in the reboot) is all that remains after a thinly sketched environmental polycrisis has turned humanity into an endangered species.

Feb 11, 2023

Hubble Telescope Gauges Mass of Lone White Dwarf Using Einstein’s Gravitational Microlensing

Posted by in categories: evolution, space

Science Daily reports that the astronomers found out that the mass of this lone white dwarf is equivalent to 56% of the sun’s weight. It aligns with previous theoretical predictions regarding the white dwarf’s mass, and it also sheds light on persisting theories regarding the evolution of these white dwarfs as a result of usual star evolution. The interesting observation grants further understanding of theories regarding white dwarf composition and structure.

According to the Space Academy, the astronomers made use of the renowned Hubble Space Telescope to gauge this lone white dwarf’s mass. The dwarf is known as LAWD 37.

Feb 11, 2023

Dogma-defying biology

Posted by in category: biotech/medical

Many of the proteins that play a crucial role in living cells adhere to a core principle of biology: their form, or shape, fits their function. But there is also a vast number of proteins and their parts that defy that dogma.

Why it matters: New findings are revealing how these flexible, disordered proteins work — and deciphering their role in human diseases and potential treatments.

How it works: Whether many medicines, immune cells, or the moment-to-moment inner workings of cells function depends on the shape of proteins they interact with or use.

Feb 11, 2023

Scientists Made a Mind-Bending Discovery About How AI Actually Works

Posted by in category: robotics/AI

Researchers are starting to unravel one of the biggest mysteries behind the AI language models that power text and image generation tools like DALL-E and ChatGPT.

For a while now, machine learning experts and scientists have noticed something strange about large language models (LLMs) like OpenAI’s GPT-3 and Google’s LaMDA : they are inexplicably good at carrying out tasks that they haven’t been specifically trained to perform. It’s a perplexing question, and just one example of how it can be difficult, if not impossible in most cases, to explain how an AI model arrives at its outputs in fine-grained detail.

In a forthcoming study posted to the arXiv preprint server, researchers at the Massachusetts Institute of Technology, Stanford University, and Google explore this “apparently mysterious” phenomenon, which is called “in-context learning.” Normally, to accomplish a new task, most machine learning models need to be retrained on new data, a process that can normally require researchers to input thousands of data points to get the output they desire—a tedious and time-consuming endeavor.

Feb 11, 2023

Blue stragglers are the weird grandparents of the galaxy

Posted by in category: space

Blue straggler stars are the weird grandparents of the galaxy: They should be old, but they act young. Finding and studying these strange stars helps us understand the complicated life cycles of normal, more well-behaved stars.

All stars follow a particular path in life, known as the main sequence. The moment they begin fusing hydrogen in their cores, they maintain a strict relationship between their brightness and temperature. Different stars will have different combinations of brightness and temperature, but they all obey the same relationship. For example, smaller stars, like red dwarfs, will be relatively dim but also cool, with their surfaces turning a characteristic shade of red. Medium stars, like the sun, will be both hotter and brighter, turning white. The largest stars will be both incredibly bright and extremely hot, making them appear blue.

Feb 11, 2023

Growing Food on Mars to Support Life from Earth Will Need to Exploit All the Tools in Our Scitech Arsenal

Posted by in categories: food, space

A book entitled “Dinner on Mars” describes how to turn the dry, cold Martian world into a place to grow food for future inhabitants.

Feb 11, 2023

Puffy helium planets could explain exoplanet size mystery

Posted by in category: space

Gaseous planets close to their star could see their hydrogen atmospheres evaporate, leaving behind helium that could be detected by the James Webb Space Telescope.