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Massachusetts Institute of Technology (MIT) engineers have developed a battery-free, wireless underwater camera that’s powered by sound waves.
Scientists estimate that more than 95 percent of Earth’s oceans have never been observed, which means we have seen less of our planet’s ocean than we have the far side of the moon or the surface of Mars.
The high cost of powering an underwater camera for a long time, by tethering it to a research vessel or sending a ship to recharge its batteries, is a steep challenge preventing widespread undersea exploration.
MIT researchers have taken a major step to overcome this problem by developing a battery-free, wireless underwater camera that is about 100,000 times more energy-efficient than other undersea cameras. The device takes color photos, even in dark underwater environments, and transmits image data wirelessly through the water.
NASA’s DART to Hit Asteroid
Posted in cosmology
Preview of NASA’s Double Asteroid Redirection Test, or DART, the first asteroid deflection mission.
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The circuits are found in several forms and in different locations. Some offer faster creation of new AI models. They use multiple processing circuits in parallel to churn through millions, billions or even more data elements, searching for patterns and signals. These are used in the lab at the beginning of the process by AI scientists looking for the best algorithms to understand the data.
The United States would respond decisively to any Russian use of nuclear weapons against Ukraine and has spelled out to Moscow the “catastrophic consequences” it would face, U.S. National Security Adviser Jake Sullivan said on Sunday.
If you’re building an Intel Raptor Lake-based machine in the next year, this is probably the box you’ll be opening up.
Summary: Researchers say laughter may have been preserved by natural selection to assist with human survival.
Source: The Conversation.
A woman in labor is having a terrible time and suddenly shouts out: “Shouldn’t! Wouldn’t! Couldn’t! Didn’t! Can’t!”
Quantum computers have the potential to vastly exceed the capabilities of conventional computers for certain tasks. But there is still a long way to go before they can help to solve real-world problems. Many applications require quantum processors with millions of quantum bits. Today’s prototypes merely come up with a few of these compute units.
“Currently, each individual qubit is connected via several signal lines to control units about the size of a cupboard. That still works for a few qubits. But it no longer makes sense if you want to put millions of qubits on the chip. Because that’ s necessary for quantum error correction,” says Dr. Lars Schreiber from the JARA Institute for Quantum Information at Forschungszentrum Jülich and RWTH Aachen University.
At some point, the number of signal lines becomes a bottleneck. The lines take up too much space compared to the size of the tiny qubits. And a quantum chip cannot have millions of inputs and outputs—a modern classical chip only contains about 2,000 of these. Together with colleagues at Forschungszentrum Jülich and RWTH Aachen University, Schreiber has been conducting research for several years to find a solution to this problem.
Brain-computer interfaces may have a profound effect on people with limited mobility or other disabilities, but experts say they also introduce privacy issues that must be mitigated.
Science may be getting closer to figuring out where consciousness resides in the brain. New research demonstrates the significance of certain kinds of neural connections in identifying consciousness.
Jun Kitazono, a corresponding author of the study and project researcher at the Department of General Systems Studies at the University of Tokyo, conducted the study, which was published in the journal Cerebral Cortex.
“Where in the brain consciousness resides has been one of the biggest questions in science,” said Associate Professor Masafumi Oizumi, corresponding author and head of the lab conducting the study. “Although we have not reached a conclusive answer, much empirical evidence has been accumulated in the course of searching for the minimal mechanisms sufficient for conscious experience, or the neural correlates of consciousness.”