Scientists have found a way to make jet fuel from human sewage and cut carbon emissions.

A new thermal transistor can control heat as precisely as an electrical transistor can control electricity.

By Rachel Nuwer

Developed in 2019 but only just discovered, this US Navy device can make people stop talking, apparently.

Google on Wednesday infused its Bard chatbot with a new-generation artificial intelligence model called Gemini, which it touts as being able to reason better than ChatGPT and other rivals.

The search engine juggernaut is aiming to take the generative AI lead from ChatGPT-maker OpenAI as that company deals with the aftermath of a boardroom coup that saw chief executive Sam Altman fired and then rehired within a matter of days.

Google has for years discreetly developed AI powers but was caught off guard when OpenAI late last year released ChatGPT and teamed up with Microsoft to make its capabilities available to users worldwide.

A new venture-backed startup is capitalizing on the productivity that can be channeled while lucid dreaming, Fortune reports.

Lucid dreaming is a state of being aware that you are dreaming during your sleep cycle and the ability to control or manipulate the dream narrative. As many as 70% of people experience the phenomenon at least once in their lifetime.

Prophetic, founded earlier this year, is tapping into a new unconscious market with an innovative headpiece called the “Halo”

One of the big questions GiveDirectly is trying to answer is how to direct cash to low-income households. “Just give cash” is a fun thing to say, but it elides some important operational details. It matters whether someone gets $20 a month for two years or $480 all at once. Those add up to the same amount of money; this isn’t a Side Hustle King situation. But how you get the money still matters. A certain $20 every month can help you budget and take care of regular expenses, while $480 all at once can give you enough capital to start a business or another big project.

The latest research on the GiveDirectly pilot, done by MIT economists Tavneet Suri and Nobel Prize winner Abhijit Banerjee, compares three groups: short-term basic income recipients (who got the $20 payments for two years), long-term basic income recipients (who get the money for the full 12 years), and lump sum recipients, who got $500 all at once, or roughly the same amount as the short-term basic income group. The paper is still being finalized, but Suri and Banerjee shared some results on a call with reporters this week.

By almost every financial metric, the lump sum group did better than the monthly payment group. Suri and Banerjee found that the lump sum group earned more, started more businesses, and spent more on education than the monthly group. “You end up seeing a doubling of net revenues” — or profits from small businesses — in the lump sum group, Suri said. The effects were about half that for the short-term $20-a-month group.

Some 380,000 of them are believed to be stable enough to aid in developing new technology.

Newly discovered materials can be used to make better solar cells, batteries, computer chips, and more.

Scientists have found that light-activated oxidizing nanoparticles can whiten teeth without causing damage.

Japanese scientists are reportedly set to start human trials for a drug that can regrow teeth. All being well, the clinical trial will start next year and a tooth regeneration therapy could be ready for people with holey smiles as early as 2030, according to Japanese media.

Back in 2021, a team from the Graduate School of Medicine at Kyoto University published promising research that showed a protein called USAG-1 limits the growth of teeth in mice. By turning off the gene that codes for the production of the protein, the mice were able to freely regrow their teeth.

They were then able to create a neutralizing antibody drug therapy that was able to block the protein’s function, stimulating the mice into growing new sets of teeth. Later experiments showed the same benefits in ferrets, which have a more similar dental pattern to humans.