What is the purpose of a zoo? Is it a place offering its visitors to opportunity to view animals from far off lands? Is it a public space where people can gather, perhaps for events such as concerts of simply to meet for a few hours of relaxation? Is it a research institution where the […]
Deep in the Peruvian rain forest, a helicopter descends into a clearing. Moving quickly, its passengers emerge from its open side doors and spring nimbly to the ground the moment its skids touch the surface. They have to move fast to get their equipment unloaded and operational. Time is of the essence. The rest of […]
Anyone interested in becoming involved with wild mushrooms had better have themselves a good field guide. For those in the Pennsylvania and Mid-Atlantic region, such a guide has long been Bill Russell’s 2006 book “Field Guide to Wild Mushrooms of Pennsylvania and the Mid-Atlantic,” part of the Keystone Books series from Penn State University Press.
My dear Galileo,
Each evening for weeks now I have carried my telescope to the top of a nearby hill and pointed its 70mm objective lens toward the clearly visible bright dot in the sky that I have learned to identify as Jupiter. Bringing it into focus, its 17.5x magnification – more than your early 8x model but less than your eventual 20x one – shows me clearly that what I am seeing is not a star but a planet; a planet with tiny illuminated dots seemingly nearby it.