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  2. Howe Caverns - Wikipedia

    en.wikipedia.org/wiki/Howe_Caverns

    Inside the caverns. Howe Caverns is a solutional cave formed by the dissolution of limestone rock. [2] The cave, like many on the Helderberg Plateau, such as Secret Caverns, which is also operated as a show cave, and Tory Cave, is composed of thickly bedded Lower Devonian aged Coeymans Limestone and thinly bedded Upper Silurian aged Manlius Limestone, both part of the Helderberg Group.

  3. Space elevator economics - Wikipedia

    en.wikipedia.org/wiki/Space_elevator_economics

    A space elevator built according to the Edwards proposal is estimated to have total cost of about $40 billion (that figure includes $1.56 billions operational costs for first 10 years). Subsequent space elevators are estimated to cost only $14.3 billion each. [14] For comparison, in potentially the same time frame as the elevator:

  4. Cobleskill, New York - Wikipedia

    en.wikipedia.org/wiki/Cobleskill,_New_York

    Two cavern complexes are located just outside Cobleskill and are open to tourists: Howe Caverns and Secret Caverns. Both are north of I-88 and Howes Cave. Secret Caverns is located just outside Cobleskill, and was formed during the last Ice Age. The caverns were discovered in 1928, and include a 100-foot underground waterfall. [15] [16] Howe ...

  5. Howes Cave, New York - Wikipedia

    en.wikipedia.org/wiki/Howes_Cave,_New_York

    Howes Cave is a hamlet in Schoharie County, New York, United States. The community is 5.3 miles (8.5 km) east of Cobleskill. Howes Cave has a post office with ZIP code 12092, which opened on November 18, 1867. [2] [3] The hamlet's name comes from Howe Caverns, a popular tourist attraction

  6. Space elevator construction - Wikipedia

    en.wikipedia.org/wiki/Space_elevator_construction

    Beam-powered climber to an altitude of 1km, Space Elevator Games 2009. [9] Altitude 36,000 km [10] 1km 2009 Speed over 4 m/s (14 km/h). [9] Payload 10kg 2009 Estimated - climber dragged bottom stop about 30m up, with speed over 6 m/s (22 km/h), during the Space Elevator Games 2009. [9] Laser power beaming Power beam 1 kW 2009

  7. Secret Caverns - Wikipedia

    en.wikipedia.org/wiki/Secret_Caverns

    Secret Caverns is a limestone solutional cave, located in Howes Cave, New York. As a show cave , Secret Caverns is open to the public as a tourist attraction, with guides taking visitors through the cave, which features karst and glacial geological features, culminating in a 100 ft (30 m) waterfall.

  8. Iroquois Indian Museum - Wikipedia

    en.wikipedia.org/wiki/Iroquois_Indian_Museum

    The museum was built at a cost of $1.3 million. It holds the largest collection of Iroquois art in the United States, and is designed to teach and interpret the culture of the Six Tribes of the Iroquois.

  9. PSFS Building - Wikipedia

    en.wikipedia.org/wiki/PSFS_Building

    The building's spine containing elevators and utilities was made visible on the outside for the first time in a skyscraper instead of hidden inside in the center of the building. [ 4 ] [ 8 ] Putting the banking hall on the second floor allowed for retail space on the street level, giving the building's owners extra revenue and attracting middle ...