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Category: futurism – Page 84
People are poorly equipped to detect AI-powered voice clones
Barrington, S., Cooper, E.A. & Farid, H. People are poorly equipped to detect AI-powered voice clones. Sci Rep 15, 11,004 (2025). https://doi.org/10.1038/s41598-025-94170-3
There are more stars in the universe than there are grains of sand on Earth?
There are an estimated 20 quintillion stars in the observable universe, but sand grains on Earth might outnumber them. Here is some key information for you to watch before deciding to read the whole article. Thanks for visiting us!
Stars vs. Sand: The Numbers Game
The popular saying that there are more stars in the universe than grains of sand on Earth’s beaches, famously popularized by Carl Sagan, has always been difficult to grasp. When you consider the vast number of sand grains on just one beach, let alone the entire planet, it seems impossible that stars could outnumber them. However, despite its popularity, this claim might not hold up under scrutiny. Let’s explore this cosmic comparison using rough estimates.
Scientists reveal new toxin that damages the gut
Scientists at La Trobe University have discovered how a diarrhea-causing strain of bacteria uses “molecular scissors” to cut open and destroy gut cells, leading to severe illness and sometimes death.
Published in Gut Microbes, the research reveals for the first time the three-dimensional structure of a toxin secreted by enteropathogenic E. coli (EPEC) bacteria, and shows how the bacteria use the toxin to invade and destroy the epithelial cells that line the gut.
The toxin, which is an enzyme called EspC, destroys the cells by cutting up their internal protein structure.
Humans have a third set of teeth: Scientists discover medicine to grow them
Imagine a world where losing a tooth doesn’t mean living with dentures or undergoing expensive implants. It might sound like science fiction, but researchers in Japan are on the verge of making this dream a reality. A groundbreaking discovery suggests that humans possess a third set of teeth —dormant tooth buds that typically never develop.
This revolutionary finding could transform dental care as we know it. Scientists have identified a way to activate these dormant tooth buds through a newly developed medication. If successful, this treatment could enable people to regrow lost teeth, making dentures and implants a thing of the past.
Let’s dive into the science behind this discovery and explore how it might change the future of dentistry.
Cell Cycle / Cell Division & its Regulation
The cell cycle is a fundamental process that drives cell growth, division, and replication. In this video, we’ll break down the different phases of the cell cycle (G1, S, G2, and M), explore the key checkpoints that regulate progression, and discuss the critical role of cyclins and CDKs in cell cycle control.
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