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The calculator project

“I had the calculator class running on my Mac. I had some Arduinos, seem to always have some about, and a 2.8” capacitive touchscreen from Adafruit. I put the two together and, well.. It just didn’t have enough …

Tic Tac Toe for Nokia 5110

“This is classic game of Tic Tac Toe. It is easy project, all you need for this is: 3 Buttons, Nokia 5110 display, Arduino (I used nano)”

Toward all-solid lithium batteries

“Most batteries are composed of two solid, electrochemically active layers called electrodes, separated by a polymer membrane infused with a liquid or gel electrolyte. But recent research has explored the possibility of all-solid-state batteries, in which the liquid (and potentially …

Vinduino, a wine grower’s water saving project

“If you want to learn about saving water, talk to a farmer. California farmers, including myself, voluntarily aim to reduce agricultural water consumption by 25%. This reduction (25% of 42 million acre feet/year) is more than the annual urban …

Wave of the future: terahertz chips a new way of seeing through matter

“Electromagnetic pulses lasting one millionth of a millionth of a second may hold the key to advances in medical imaging, communications and drug development. But the pulses, called terahertz waves, have long required elaborate and expensive equipment to use. Now …

We finally have a computer that can survive the surface of Venus

“Venus is one of the most inhospitable places in the solar system. Descending through the clouds of boiling sulphuric rain is actually the easy bit—the hard bit is not being cremated by the surface temperature of 470°C (878 …

Engineers harness stomach acid to power tiny sensors

“Researchers at MIT and Brigham and Women’s Hospital have designed and demonstrated a small voltaic cell that is sustained by the acidic fluids in the stomach. The system can generate enough power to run small sensors or drug delivery …

Mimicking nature’s cellular architectures via 3D printing

“Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being compressed. The plant’s hardiness comes from a combination of its hollow, tubular macrostructure and porous …

Scientists develop ‘lab on a chip’ that costs 1 cent to make

“Researchers at the Stanford University School of Medicine have developed a way to produce a cheap and reusable diagnostic “lab on a chip” with the help of an ordinary inkjet printer. At a production cost of as little as 1 …

1000 times more efficient nano-LED opens door to faster microchips

“With electrical cables reaching their limits, optical connections like fiberglass are increasingly becoming the standard for data traffic. Over longer distances almost all data transmission is optical. Within computer systems and microchips, too, the growth of data traffic is exponential …