Draw a straight line, and then continue it for the same length but deflected by an angle. If you keep continue doing this you will eventually return to roughly where you started, having drawn out an approximation to a circle. But what happens if you increase the angle of deflection by a fixed amount at each step? The curve will spiral in on itself as the deflection increases, and then spiral out when the deflection exceeds a half-turn. These spiral flourishes are called Euler spirals. [code]
Portuguese designer Susana Soares has developed a device for detecting cancer and other serious diseases using trained bees. The bees are placed in a glass chamber into which the patient exhales; the bees fly into a smaller secondary chamber if they detect cancer.
Scientists have found that honey bees - Apis mellifera - have an extraordinary sense of smell that is more acute than that of a sniffer dog and can detect airborne molecules in the parts-per-trillion range.
Bees can be trained to detect specific chemical odours, including the biomarkers associated with diseases such as tuberculosis, lung, skin and pancreatic cancer.
how does one train a bee
Bugs are awesome. I cannot fathom why most people don’t seem to notice this.
Landscape as Cartography | Socks Studio
Flying in the 20s had to be a thrilling experience, indeed. In the absence of radio communication or radar technology, pilots engaged in American coast to coast airmail or passenger service had to rely on often imprecise navigation charts to avoid getting lost. Most of the time they were alone in the air, flying on desertic territory, hoping to reach the destination without encountering bad weather.
To help guiding the pilots across the impervious North American territory, the Congress funded the construction of very large arrow-shaped Airmail Beacons, (up to 20 meters in lenght). Every concrete arrow, painted in bright yellow, was accompanied by a 15 m tall tower, emitting a powerful gas powered light. Each arrow pointed towards the next, separated one with another by a distance of 3 to 10 miles. The beacon towers have been scrapped and recycled for WWII, while the yellow paint has since been worn off by the elements, but the enormous solid concrete arrows are likely to stand there for good.