A university in Taiwan has opened a course to teach students how to appreciate and analyse porn movies.
Researchers at the University of California Los Angeles have found that searching the web triggers centers in the brain that control decision-making and complex reasoning in middle-aged and older adults. But while web browsing may spark more neurons than mere book-reading, the study says, this only occurs in those with previous Internet experience.
Anti-wi-fi paint offers security
Researchers say they have created a special kind of paint which can block out wireless signals.
It means security-conscious wireless users could block their neighbours from being able to access their home network – without having to set up encryption.
The paint contains an aluminium-iron oxide which resonates at the same frequency as wi-fi – or other radio waves – meaning the airborne data is absorbed and blocked.
By coating an entire room, signals can’t get in and, crucially, can’t get out.
Developed by former astronaut Franklin Chang Diaz, the engine could change a lot about how we interact with space. The new rocket, driven by plasma, is able to use cheaper fuels like neon, argon, or hydrogen, while providing finer control over thrust and specific impulse — two key parameters that determine a rocket’s movement and speed. The new rocket is also much safer and more reliable than traditional chemical rockets, reducing the risks associated with space flight.
The engine exhausts plasma, a fourth state of matter along with solids, liquids, and gases. Plasma is essentially ionized gas. It is typically created via either low pressure or extremely high heat (10,000° C or more). Plasma consists of a mix of electrons and positively charged gas ions.