Along the Appalachian Trail in Virginia is a fascinating rock formation called “Dragon’s Tooth”. It sits atop of a mountain by the same name, and is one of the three “Crown Jewels” of the state beloved by nature-seekers, backpackers, and the like.The photos show first the obvious tooth formation, and second is a rock scramble […]
Appalachian Trail’s “Dragon Tooth” Read More »
In the midst of the Gila National Forest in New Mexico stands this cross-topped mound. It marks the crypt and burial site of Sergeant James Cooney, and the marker besides the grave tells readers that Cooney was killed by Indians in 1880 as he tried to warn settlers about an upcoming Indian raid. What the
New Mexico’s Gila National Forest Read More »
10,000 years ago is young in geological history. This relatively small number seems counterintuitive when one encounters the vast space of white sands in the Tularosa Basin of southern New Mexico. The dunes here make up the world’s largest gypsum fields: at 275 square miles, they can be seen by astronauts from space.
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Much of south-central Pennsylvania’s landscape is extremely ancient. For instance, a large swath of Cumberland County, where this photo was taken, straddles the Cambrian, Ordovician, and Silurian Ages, dating from 570 million to 417 million years ago. Limestone was one of the major types of soil generated in these millennia. There was also a mass
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This mother chimpanzee is using stones to crack open a nut, as a child watches and learns. The skill-level needed for this operation is difficult (finding the right anvil-shaped stone, using another proper-sized stone to bang, learning how to position the nut, etc), and it will be until the young chimp is about six before
Chimpanzee’s Development of Stone-Age Technology Read More »
Fallingwater is the most iconic home of the American architect Frank Lloyd Wright for good reason. The building was constructed during the Great Depression, and integrates the natural landscape of running water, stone, and woodlands throughout. Windows and walls beckon to rather than barricade from the outside terraces. Fallingwater was created in the middle of
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Displayed here are the “Amanita Phalloides,” the “Death Cap” mushrooms responsible for 90% of fatalities caused by mushroom poisonings in the world today, and favored by assassins historically. The fungi are said to be delicious, and their toxicity lasts regardless of cooking, freezing, or drying. But the Death Caps’ common looks and tasty flavor belie
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Medieval Europeans lived far more isolated lives than we, and consequently, existed knowing there were vast tracts of lands and cultures to which they had no access. Tales about places necessarily depended on word-of-mouth, supplemented with rare but extremely popular travelogues. And so came to pass stories and legends about an unusual living thing, half-plant
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Malaria has been an extraordinary shaper of history. Dated as far back as 30 million years old, this protoza really took off after the agricultural revolution (not surprising, since it thrives in mosquitos, who love the standing waters that frequently accompany cleared out lands). Some scientists believe Malaria to be the single-biggest killer in human
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Across the world, prehistoric cultures have marked the landscape with monuments expressed as mounds, circles, and ditches. Anthropologists frequently interpret these structures in light of their astronomical or religious focus, but recent research by Lynne Kelly has argued for a more pragmatic function. It turns out, cultures transitioning from nomadism to full-time agriculture across the
Prehistoric Mound Markers and Their Functions Read More »
The rocks shown here lie along the Appalachian Trail close to Port Clinton, Pennsylvania, and are part of one of the oldest mountain ranges in the world. Formed over 200 million years ago, the fact that these peaks are relatively small (the highest – in North Carolina – is only just over 6,600 feet) belie
Religious traditions across history have commonly developed rituals around purity and how to properly bury the dead: quite often, these areas overlapped. In the ancient period of the Zoroastrian religion (developing in modern Iran), records of disposing human corpses in a non-polluting way were documented as early as the fifth century BCE. Zoroastrians thought that
After-Death Religious Traditions of the Zoroastrians Read More »
One of my favorite moments in literature comes from the Ancient Roman poet Ovid’s _Metamorphosis_, which weaves together all the myths of the Olympian deities into one narrative. Among the hundreds of tales Ovid relates is the story of the contest between the Goddess Minerva and the young maiden Arachne, whose talents for weaving exquisite
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This giant pile of rocks lies close to an outlook called The Pinnacle along the Appalachian Trail, and is an example of a “cairn,” albeit gone overboard. Stacking stones into towers has served as a direction marker, memorial, or spiritual commemoration across many world cultures. The term cairn is Gaelic, and means “a heap of
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In the early twentieth century near Mount Union, Pennsylvania, a mining company called Harbison-Walker profited from quarrying a type of sandstone known as “ganister” to make bricks. To get to the stone pits, the miners built a long trail into the mountainside in 1936 – here you see the trail today, known as the “Thousand
Harbison-Walker Mining Company Read More »
The force of the wind and elements that this figure has to brace himself against well represent the reputation of the Ancient Greek orator Demosthenes. Greeks and Romans described him as someone who fought against the destiny he seemed to have inherited to become one of the most skillful speech-makers of all time. Born in
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This is one of the many stellar views at Hawk Mountain Preserve in eastern Pennsylvania, one of the best places in the northern United States to watch many native hawk species in their migrations and habitats. This beautiful wildlife sanctuary was made possible because of two people in particular. First, the ornithologist Robert Pough —
Hawk Mountain Preserve in Eastern Pennsylvania Read More »
Scientific genome analysis has shaped history once again with a recent study published in the science journal _Nature Communications_. This painting of death strangling a victim of the plague gets at the horror caused by the infamous Black Death, a pandemic that wiped out a third of Europe’s population in the 14th century. By studying
Scientific Genome Analysis and the Black Death Read More »
Kellys Run Nature Preserve near Lancaster, Pennsylvania, is today part of a recently made ecological conservancy with beautiful views (see second photo) of the Susquehanna River amidst a great variety of forest life. The tree canopy and rugged terrain predominate the vista so much that you might never know earlier, human-driven economies had once existed
Lancaster, Pennsylvania’s Kelly’s Run Nature Preserve Read More »
This illustration is the best I can do to represent American scientist Eunice Foote, since no extant images of her remain. This is a shame, because Foote was the first scientist to analyze the composition of gasses to predict what we now call the Greenhouse Effect. In 1856, hundreds of scientists were in attendance at
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