hubie writes:A memristor (memory resistor) is a hypothetical circuit element that, in principle, would make up the fourth basic circuit element joining the resistor, capacitor, and inductor. One of the more interesting properties of an ideal memristor is that there exists a non-liner relationship between the applied voltage and current which gives rise to non-volatile memory behavior. This has resulted in a lot of exciting research in the semiconductor industry for new and improved memory chips.The hallmark of a memristor is that the non-linear relationship between the electric flux and charge gives rise to a voltage-current plot that exhibits a pinched hysteresis behavior, namely that it looks like a frequency-dependent Lissajous figure that always crosses the plot at the origin. If one takes a step back from solid state devices and defines memristors in terms of this voltage/current behavior, there are a number of biologic-based systems that qualify, including human skin. If skin is a memristor, does that mean that it acts like non-volatile memory? In a new paper published in Nature's open-access journal Scientific Reports, Pabst et al show that this is indeed the case. They applied direct current voltage pulses to various parts of the human skin and show that analog information can be stored for at least three minutes.Read more of this story at SoylentNews.
canopic jug writes:VPNs are a way of stitching together separate networks, often physically separate ones, such that they resemble a single logical network. They are (mis-)used heavily these days on the mistaken premise that the network inside any given firewall is somehow secure and the network outside that firewall is somehow less secure. The idea of not trusting the network at all, the foundation of several of the services developed in the 1980s under MIT's Project Athena, such as Kerberos, is returning. Zero Trust is the new name for the networking concept in which no part of the network is considered secure, whether inside or outside a firewall. The pendulum is swinging back and multiple articles this year cover the fact that Zero Trust Networking is trending.
c0lo writes:Only 6 years after the weathermen needed a new color for just one spot of extreme temperatures on the map, this is how it looks when that color needs to be used for over 30% of the Australia's area. And that for 3 days in a row, starting today, Dec 18 2019 (like, meh, just a balmy 40C in Melbourne at 18:30, she'll be apples).[40C is 104F and 50C is 122F --ed.]Coverage:
MrPlow writes in with a submission, via IRC, for SoyCow4408.Put the crypt into cryptocoin: Amid grave concerns, lawyers to literally dig into exchange exec who died owing $190m
canopic jug writes:Famed hardware hacker Bunnie Huang has published an electronic edition of his Essential Guide to Shenzhen. The PDF version is now available for download free of charge, available under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. His book is intended to help non-Mandarin speakers navigate the sprawling electronics markets, Hua Qiang Bei, in Shenzen. It specializes in finding components, setting quantities and packaging, agreeing on payments and deliveries, and remembering the vendor's location within the dense mazes.
canopic jug writes:Bows are more accurate, have greater range, and can fire more frequently than spears. They mostly replaced the spear. In many areas where thrown spears were used for a longer time, a lever known as an atlatl was use to add power to the throws. Some Canadian researchers reckon that if bow use, for example, was learned by children using child-sized bows and arrows, then spear use would be learned by children using child-sized spears and atlatls. Now they seem to have found archeological evidence of that in Par-Tee, Oregon, USA where they have uncovered small, child-sized whalebone atlatls.
upstart writes in with a submission, via IRC, for Runaway1956.Recently Retired USAF General Makes Eyebrow-Raising Claims About Advanced Space Technology
upstart writes in with a submission, via IRC, for carny.Valuable personal info leaks from Facebook – not Zuck selling it, someone stealing hard drive of staff data
upstart writes in with a submission, via IRC, for Runaway1956.Max Q: Blue Origin launches a New Shepard and Rocket Lab officially opens U.S. launch site – TechCrunch