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  • Tufa towers in Mono Lake at dawn with crescent moon. Mono Lake lies near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_35_xs.jpg
  • Tufa towers in Mono Lake. Mono Lake lies near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_34_xs.jpg
  • Tufa towers in Mono Lake. Mono Lake lie near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_31_xs.jpg
  • Tufa towers in Mono Lake at sunrise. Mono Lake lies near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_36_xs.jpg
  • Tufa towers on an island in Mono Lake. Mono Lake lies near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California. (lit with red flash before dawn).
    USA_CA_ES_33_xs.jpg
  • Tufa towers in Mono Lake in winter snow. Mono Lake lie near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_32_xs.jpg
  • Tufa towers in Mono Lake. Mono Lake lie near the town of Lee Vining. It is at least 700,000 years old and one of the oldest continuously existing lakes on the continent. Tufa towers (photographed) are made from calcium and carbonate combine to form limestone, which builds up over time around the lake bottom spring openings. Declining lake levels have exposed the tufa towers we see today. Some of the tufa towers are up to 30 feet high. Route 395: Eastern Sierra Nevada Mountains of California.
    USA_CA_ES_30_xs.jpg
  • Proton decay experiment to determine the ultimate stability of matter..View of the entrance of Tokyo University's Proton Decay Experiment. 1,000 50-centimeter photomultiplier tubes line the 12-meter deep tank of water form the experiment. The water contains enough protons to provide an average of one decay event per year, an event that may be detected by these tubes as the particles from the decay cause a visible light phenomenon known as Cerenkov radiation. The experiment is taking place 914 meters underground in a zinc mine below Mt. Ikenoyama to minimize the effects of cosmic rays. Japan. (1985).
    Japan_JAP_SCI_PHY_04_xs.jpg
  • Supermarkets are generally a new phenomenon in Ecuador as the large outdoor markets have long been a way of life for Ecuadorians. Though they still exist, supermarkets have begun to replace them in the bigger cities. Quito, Ecuador. (Supporting image from the project Hungry Planet: What the World Eats)
    ECU04_6905_xf1brw.jpg
  • Cereal choices in a Quito, Ecuador, supermarket. Supermarkets are generally a new phenomenon in Ecuador as the large outdoor markets have long been a way of life for Ecuadorians. Quito, Ecuador. (Supporting image from the project Hungry Planet: What the World Eats)
    ECU04_6924_xf1brw.jpg
  • Although prices are higher, some who can afford them prefer to shop in the supermarkets because foreign brands, local produce and meat products can be found in one location, under one roof. Supermarkets are generally a new phenomenon in Ecuador as the large outdoor markets have long been a way of life for Ecuadorians. Though the outdoor markets still exist, supermarkets have begun to replace them in the bigger cities. Quito, Ecuador. (Supporting image from the project Hungry Planet: What the World Eats)
    ECU04_6919_xf1brw.jpg
  • Proton decay experiment to determine the ultimate stability of matter. Dr. Masatoshi Koshiba, director of Tokyo University's Proton Decay Experiment. Dr. Koshiba is seen holding one of the 1,000 50 centimeter photomultiplier tubes that line the 12-meter deep tank of water that forms the experiment. The water contains enough protons to provide an average of one decay event per year, an event that may be detected by these tubes as the particles from the decay cause a visible light phenomenon known as Cerenkov radiation. The experiment is taking place 914 meters underground in a zinc mine below Mt. Ikenoyama to minimize the effects of cosmic rays..Japan. MODEL RELEASED (1985)
    Japan_JAP_SCI_PHY_03_xs.jpg
  • The tips of the gecko's toes are covered with corrugations of fantastic complexity. The corrugations are lines of tiny hairs. Flattened in the right way against a surface, the hairs lie so tightly on the surface that the gecko's toes literally form a kind of chemical bond with it. (In technical terms, the gecko takes advantage of van der Waals force.) This is a phenomenon that intrigues researcher Alan DiPietro, of iRobot, in Somerville, MA. Clinging to the glass wall of a terrarium opposite a real gecko, DiPietro's crude, 13-centimeter-long, 100-gram Mecho-gecko has sticky feet that let it clumsily cling to walls, at least for short intervals. From the book Robo sapiens: Evolution of a New Species, page 92-93.
    USA_rs_342_qxxs.jpg

Peter Menzel Photography

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