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"This project explores the potential of harnessing sunlight directly to produce objects. The Sun Cutter is a low-tech, low-energy version of a laser cutter. It uses pure sunlight, focused by a ball lens, to repeatedly cut programmed shapes in up to 0.4mm thick plywood as well as paper and card."
More projects from the RCA Design products Department.
Mathew Lippincott sends in this link to a 1991 book on micro-livestock, including currently domesticated and potential future domestication candidates among large mammals, rodents, insects, birds, and lizards: "Micro-livestock: little known small animals with a promising economic future".
Extensive and beautifully illustrated interviews with a new generation of craftsmen: Grain & Gram: the new gentleman's journal.
Pictured: Blair Sligar, who builds furniture and sculptures from salvaged and local materials.
Via Clockworker & Dude Craft.
"Handy farm devices and how to make them", Rolfe Cobleigh, 1912.
"The fuel chiefly employed for motors (to the abundant supply of which the rapid rise of the automobile industry may be said to be largely due) is petrol. The motor industry, which is fast becoming one of the world's greatest industries, is thus dependent upon the supply of a fuel which to all appearance must, according to the present trend of progress, fail in the near future to be equal to the demand. The Motor Union of Great Britain and Ireland became somewhat alarmed at the serious rise in the price of petrol, and in September 1906 it was suggested that a special Committee should be appointed to fully discuss this important subject."
"In July 1907 the official report of the Committee was issued, and through the courtesy of the secretary of the Motor Union the following extracts are taken: The Committee have carefully considered the various substitutes for petrol which have been brought before them, and have unanimously arrived at the conclusion that the main efforts of the Motor Union should be in the direction of encouraging in every way the use and development of a substance, such as alcohol, produced from vegetation."
"Alcohol offers a complete and satisfactory substitute for petrol so far as its properties are concerned, and hence probably the most important recommendation of the Committee is that connected with the production on a large scale of alcohol for the purposes of a fuel. It may be noted that the argument added to all others, but which to many in this country would probably appear the most important of all, is the fact that it would form a home industry, especially if produced from some substance, such as peat, potatoes, or beet, which would place the country in an independent position with regard to foreign supplies, a consideration which, it should be noted, is leading the Governments of France and Germany, particularly the latter, to give every encouragement to the use of alcohol as a fuel."
Quoted from "Commercial peat: its uses and possibilities", Frederick T. Gissing, 1909. Picture: the 1909 Alco Six Race Car.
"He refused to try anything. I thought it was very poor … eating a langoustine or prawn is just like eating a lizard or insect, one just lives in the sea and one on land. Ecologically we will have to start getting our protein from other sources as our population increases as the planet cannot support our growing demand for meat. Our rainforests are suffering as we slash and burn to grow animal feed and we deplete our oceans of fish."
"Edible insects are rich in proteins, minerals and vitamins and are being actively promoted by the United Nations as the secret weapon in averting a worldwide famine. According to a recent UN report: Edible insects constitute high-quality food for humans, livestock, poultry and fish. Because insects are cold-blooded, they have a high [pro rata] food conversion rate—crickets need six times less feed than cattle, four times less than sheep, and twice less than pigs and broiler chickens to produce the same amount of protein. Only a few countries "farm" insects, and the UN is now spending millions of dollars to investigate mass insect production."
Read more. Illustration by Nicole Antrobus. See also: Edible Insects and Insecticides / Insects as a Sustainable Feed Ingredient in Pig and Poultry Diets.
"Designed primarily for weighing letters in order to determine postage, this non-digital, non-electronic, and barely even mechanical little gizmo is nonetheless accurate enough that its use has been approved by the US Postal Service. Besides its role as a letter-weigher, the 'Personal Post Office Scale' has reportedly also found use in fields such as home brewing, field biology, cooking, and police work." Read more / Order. Thanks, Rasmus.
“Los Angeles will be a smokeless and sootless city, clean pure. It will be made so by all the power and heating plants being supplied with power and heat from the ocean waves by the Starr Wave Motor.”
Read more: three inventors who tried to bottle the ocean's power. Hat tip to Klaas Van Gorp.
Moonmilk.com has, among other things, a great collection of extremely low-tech (and rather unconventional) electronic and acoustic musical instruments online. Most are built from scrap materials. Particularly geeky (and comparatively sophisticated) is the pixelated violin, which comes with building plans. Via WeWasteTime.
"If there is one thing that distinguishes the place I grew up from the place I live now, it would be not the yards and fields themselves, but the boundaries. If you grew up in the USA as I did, you were likely surrounded by chain-link fences -- waist-high around our back yards and two or three times higher around our institutions, giving every kindergarten and churchyard a distinctive penal look.
Of course the steel chains were not edible, nor did they grow thicker and stronger over time. The fences did not spread shade over your land in the summer sun, nor thin out in winter to let in precious light. The chain mail did not make the soil more fertile, nor protect it from being washed away by the rain. The wires did not offer a home to wildlife, and their manufacture burned more carbon into the atmosphere rather than removing it. Here in Ireland, surrounded by hedgerows that stretch to the horizon on all sides, we see how unnecessary it all was." Read more: Laying hedgerows.
"Every day, the world over, large amounts of high-level radioactive waste created by nuclear power plants is placed in interim storages, which are vulnerable to natural disasters, man-made disasters, and to societal changes. In Finland the world's first permanent repository is being hewn out of solid rock - a huge system of underground tunnels - that must last 100,000 years as this is how long the waste remains hazardous.
Once the waste has been deposited and the repository is full, the facility is to be sealed off and never opened again. Or so we hope, but can we ensure that? And how is it possible to warn our descendants of the deadly waste we left behind? How do we prevent them from thinking they have found the pyramids of our time, mystical burial grounds, hidden treasures? Which languages and signs will they understand? And if they understand, will they respect our instructions? While gigantic monster machines dig deeper and deeper into the dark, experts above ground strive to find solutions to this crucially important radioactive waste issue to secure mankind and all species on planet Earth now and in the near and very distant future."
"This carefully produced downloadable and printable net file represents an iconic Hasselblad camera as a low impact and functional product that is available to all as an A4 sized, 8 page PDF. The camera takes 35mm film and takes 12-14 images per roll."
Via Lloyd Alter (and others). Previously: The pinhole camera: low-tech photography
