[neverdem]

SET IT AND FORGET IT: A new device called a memristor "remembers" whether it's on or offwhether or not it has power. Shown here 17 memristors in a row, formed by crossing 17 platinum nanowires with another wire, with a thin dab of titanium dioxide sandwiched between each junction. Each wire is 50 nanometers wide, equivalent to about 150 atoms.
Image courtesy of J. J. Yang, HP Labs.
Missing link' memristor created: Rewrite the textbooks?

H.P. Reports Big Advance in Memory Chip Design

The missing memristor found Link to Nature abstract

[neverdem]

Thanks for your thread!

[4buttons]

“(A nanometer is one billionth of a meter.)”

or, .00000000001 of a football field. (they always use this conversion)

[neverdem]

You Name It, and Exercise Helps It

China puts nation on alert to try to stop deadly virus

New immune treatment may control AIDS virus

FReepmail me if you want on or off my health and science ping list.

[the invisib1e hand]

"remembers" whether it is on or off after its power is turned off.

I'm sure that's a handy feature.

[dljordan]

Thanks, I love this stuff.

[Squantos]

Wow.......

[mjp]

Electronic theorists have been using the wrong pair of variables all these years—voltage and charge. The missing part of electronic theory was that the fundamental pair of variables is flux and charge,” said Chua. “The situation is analogous to what is called “Aristotle’s Law of Motion, which was wrong, because he said that force must be proportional to velocity. That misled people for 2000 years until Newton came along and pointed out that Aristotle was using the wrong variables. Newton said that force is proportional to acceleration—the change in velocity. This is exactly the situation with electronic circuit theory today. All electronic textbooks have been teaching using the wrong variables—voltage and charge—explaining away inaccuracies as anomalies. What they should have been teaching is the relationship between changes in voltage, or flux, and charge.”

[raygun]

ping

[RightWhale]

Sceptical that this would be a missing component of an AC circuit. Got math?

[ThePythonicCow]

When positively charged, the electrode pushed the charged vacancies and spread them throughout the TiO2, boosting the current flowing to the second electrode. When the voltage reversed, it slashed the current a million-fold

Aha - that explains this better than I had seen before.

The difference is not (as I had thought earlier) between having the holes near the top or near the bottom of the titanium dioxide.

Instead, the difference is between having the holes (missing oxygen atoms) compacted near the top of the titanium dioxide or dispersed throughout it.

When the holes are near the top, then the lower portion of the titanium dioxide, lacking the holes, presents great resistance. When the holes are dispersed, then the entire layer of titanium dioxide conducts easily, and one can see much lower resistance between the two overlapping wires.

Thanks for posting this.

[Jonx6]

ping

[21stCenturion]

...

[sionnsar]

After 40 years? Qualifies it for a Geezer Geek ping!

Geezer Geek ping.

This is a very low-volume ping list (typically days to weeks between pings).
FReepmail sionnsar if you want on or off this list.

[fishhound]

Thanks for posting this.

Bookmark

[mkjessup]

Looks like the biggest cheese dog in the world, but where’s the bun? Some chili to go with all that cheese would be good too.

Seriously, a fascinating article, thanks for posting! :)

[GOPJ]

Whether industry will adopt it remains to be seen.

It's better - it'll be adopted.

[AFreeBird]

Thanks. B4L8r