FedEx Bandwidth. Jacket Purifies And Stores Rainwater, Crazy Straw Included [Video] | Co.Design. Water scarcity is one of the biggest challenges the world faces. At present, 1.2 billion people--one-fifth of the world’s population--live in areas where water is in short supply; by 2025, according to the United Nations, that number will grow to 1.8 billion. How we’ll cope with the impending crisis on a macro level remains to be seen, but small-scale solutions abound.
A project at the Copenhagen Institute of Interaction Design, by master’s students Joshua Noble and Hyeona Yang, for instance, allows people to store and filter rainwater for drinking using the jacket on their backs. “We chose to work with the idea of a possibly not-so-distant future in which rainwater would need to be filtered before drinking and how that could be done for a hiker, nomad, or simply the momentarily infrastructure-independent wanderer,” Noble tells Co.Design. Raincatch works by collecting rainwater in its collar. Raspberry Pi. Table of Contents: The Raspberry Pi is a credit-card-sized computer that plugs into your TV and a keyboard. It is a capable little computer which can be used in electronics projects, and for many of the things that your desktop PC does, like spreadsheets, word processing, browsing the internet, and playing games. It also plays high-definition video.
We want to see it being used by adults and children all over the world to learn programming and digital making. You can read more about the Raspberry Pi here. -Introduction -Top The Raspberry Pi Foundation is a charity, so you can’t buy shares in the company. You can buy a Raspberry Pi from our main distributors, Premier Farnell/Element14 and RS Components/Allied Electronics. The Model A+ costs $20, the Model B+ costs $25, the Pi 2 costs $35, the Pi 3 costs $35, and the Pi Zero costs $5, plus local taxes and shipping/handling fees. You get the Raspberry Pi board itself. Not at the current time. Yes. There is no on/off switch! 10. 11. 12. No. 70 Things Every Computer Geek Should Know. | Arrow Webzine.
The term ‘geek’, once used to label a circus freak, has morphed in meaning over the years. What was once an unusual profession transferred into a word indicating social awkwardness. As time has gone on, the word has yet again morphed to indicate a new type of individual: someone who is obsessive over one (or more) particular subjects, whether it be science, photography, electronics, computers, media, or any other field. A geek is one who isn’t satisfied knowing only the surface facts, but instead has a visceral desire to learn everything possible about a particular subject. A techie geek is usually one who knows a little about everything, and is thus the person family and friends turn to whenever they have a question.
If you’re that type of person and are looking for a few extra skills to pick up, or if you’re a newbie aiming to get a handhold on the honor that is geekhood, read on to find out what skills you need to know. How to become a real computer Geek? 1. 2. 3. 4. 5. 6. 7. 8. 9. Researchers harvest stress and vibrations to charge tiny devices. Everything from industrial equipment to the human body loses some of the energy it uses to things like heat and vibrations. The ability to harvest some of this energy is usually pretty limited, as small heat differences and weak movements are difficult to concentrate into significant amounts of useful energy. But even an inefficient conversion can be sufficient to provide power for small energy-efficient devices, such as medical implants and short-range transmitters, so researchers are working on developing materials that can convert environmental noise into small amounts of useful energy.
In a recent example of this work, researchers have demonstrated that they can print a bio-compatible device that can harvest the stress created when it's flexed to produce over 10 nanoAmps of current. The device relies on the piezoelectric effect. A number of crystals, when stressed, create small amounts of current. There have been a number of hurdles to clear in order to make these devices, however. Electronic tattoo display runs on blood. Jim Mielke's wireless blood-fueled display is a true merging of technology and body art.
At the recent Greener Gadgets Design Competition, the engineer demonstrated a subcutaneously implanted touch-screen that operates as a cell phone display, with the potential for 3G video calls that are visible just underneath the skin. The basis of the 2x4-inch "Digital Tattoo Interface" is a Bluetooth device made of thin, flexible silicon and silicone. It´s inserted through a small incision as a tightly rolled tube, and then it unfurls beneath the skin to align between skin and muscle. Through the same incision, two small tubes on the device are attached to an artery and a vein to allow the blood to flow to a coin-sized blood fuel cell that converts glucose and oxygen to electricity. On both the top and bottom surfaces of the display is a matching matrix of field-producing pixels. Could such an invasive device have harmful biological effects?
Core77.com via Gizmodo. Researchers harvest stress and vibrations to charge tiny devices.