The mosquitoes that spread malaria have a secondary set of odor sensors in their “nose” that seem specifically tuned to detect humans.
In the coming months, the Seattle-based nonprofit The Tor Project will be making some changes to improve how the Tor network protects users’ privacy and security. The free network lets users browse the internet anonymously. For example, using Tor can reduce the risk of being identified when dissidents speak out against their governments, whistleblowers communicate with journalists and victims of domestic abuse seek help.
A new theory explains exactly what happens in the tiny space between a drop of liquid and a surface to cause a splash.
The discussion about how law enforcement or government intelligence agencies might rapidly decode information someone else wants to keep secret is – or should be – shifting. One commonly proposed approach, introducing what is called a “backdoor” to the encryption algorithm itself, is now widely recognized as too risky to be worth pursuing any further.
Collective cell movement, such as metastasizing cancer cells or wound healing, requires coordinated actions. But cells are most effective at communication when they’re not tightly packed together, research shows.