Perhaps nothing beats the Sahara for feelings of timelessness and unboundedness, but surely the worldâ''s icy deserts take second place in the metaphysical imagination. Itâ''s more than a little disconcerting to learn then, in the June 20 issue of Science magazine, that just 400,000 years agoâ''well into the era in which modern humans were evolvingâ''the southern reaches of Greenland were not just green but covered with vast spruce forests. A second article in the same issue discusses two very sudden warmings Greenland experienced 15 thousand and 11 thousand years ago, while a perspective piece addresses the implications of Greenlandâ''s climate changes for tomorrowâ''s world.
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Nanowire Transistors Could Let You Talk, Text, and Tweet Longer
Transistors with compound-semiconductor nanowires could consume less power than today’s silicon FinFETs
The Quest for the Ultimate Vacuum Tube
The cold-cathode traveling-wave tube, an ultracompact, ultraefficient source of RF waves, may finally be within reach
Ultra-Sensitive Magnetic Sensors Don't Need Ultra Cold
New SQUID arrays take advantage of strength in numbers
Nanoscale Photodetector Promises Next Generation Photonic Circuits
Device using a silver nanowire can produce a current from light
Tunnel Transistor May Meet Power Needs of Future Chips
The new transistor consumes 90 percent less power than conventional devices
Oxynitride Thin-film Transistors: Faster Screens with Faster Electrons
Will faster transistors revolutionize video?
Building Ultra-Energy-Efficient Computers Out of Tiny Bar Magnets
Nanomagnet computers could consume one-tenth the power of today’s microprocessors
Simple Device Could Convert DC Electric Field To Terahertz Radiation
Physicists propose a simple device design that emits tunable THz radiation when a DC current passes through it
The First White Laser
Lasers that can span the entire color spectrum could speed up Li-Fi and find use in lighting and displays
Intel Hits Snag On The Way To Next-Generation Chips
Moore's Law's steady cadence hits another hiccup. Will more follow?
"Valleytronics" Development Could Lead to New Approaches for Spintronics and Quantum Computing
Researchers discover that valley polarization makes electron spin polariation in silicon transistors easier
Molecular Electronics Takes Large Stride Forward
Simple process improves single-molecule diodes performance by 50 times
Five Things You Might Not Know About Moore’s Law
Facts that are often overlooked when Moore’s Law is discussed
The Murky Origins of “Moore's Law”
A hunt for the very first time the term was used
Soggy Computing: Liquid Devices Might Match the Brain's Efficiency
Vanadium dioxide switches could be great for a new kind of computing, but maybe they're just too strange
How Much Did Early Transistors Cost?
About a billion times more than they do now
Q&A: Carver Mead
A longtime collaborator recalls the first time he met Gordon Moore
Perovskite Leads to 100-Percent Efficient Nanowire Lasers
The quality that makes perovskite attractive for photovoltaics makes them near perfect for lasers
What Kind of Thing Is Moore’s Law?
The trend has more to do with collective behavior than the laws of nature
The Simplest Flexible Printed Transistors
Cheap disposable electronics from super-simple amorphous oxide transistor made from just two materials