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[[File:Space fountain-v1.1.png|thumb|A model of a space fountain]] ...s-beanstalks-and-space-fountains/ |title=Orbital Railroads: Beanstalks and Space Fountains|first=Paul |last=Lucas |work=Strange Horizons |date=14 July 2003| ...

Counterweights are often used in [[traction force|traction]] [[elevator|lifts]] (elevators), [[Crane (machine)|crane]]s and [[fair|funfair]] rides. ...ref name="Bellis">{{Cite web |url=https://www.thoughtco.com/history-of-the-elevator-1991600 |title=The History of Elevators From Top to Bottom |last=Bellis |fi ...

== Space flight == ...Henry Holt and Company, 2003 {{ISBN|0805072845}}.</ref> whereas the space elevator depends on the development of a material for the cable with a very high [[s ...

...ite web |title=Elevator Braking Systems |url=https://www.elevators.com/how-elevator-brakes-work-to-make-our-residential-elevators-and-commercial-lifts-safe/}}< * [[Space vector modulation]] ...

...supply is lost. Braking during main power loss may be required. E.g. in [[elevator]] or other safety related applications. * The braking chopper and resistors require additional space ...

...ypically includes office and general miscellaneous equipment, computers, [[elevator]]s and [[escalator]]s, kitchen cooking and [[refrigeration]], [[laundry]] w ...loads also supplies part of the energy requirement for heating. Heating a space with [[electric heating]] is environmentally less effective than using the ...

| The [[Space Elevator]] | Massive [[space tether]] ...

...rce]], holding the Earth to it, which would otherwise go shooting off into space. If the Sun's pull is considered an action, then Earth simultaneously exert ...he table is slanted, or if the table-and-book system is in an accelerating elevator. The case of any number of forces acting on the same object is covered by c ...

...] to an asteroid that has been led into orbit around the planet. The space elevator speeds travel of people and materials between Earth and Mars, but creates t ...de "[[The Empty Child]]/[[The Doctor Dances]]" a metal cylinder falls from space and lands in [[World War II]]-era [[London]], releasing nanobots which tran ...

...namic control surfaces only, such as [[aileron]]s or [[Elevator (aircraft)|elevator]]; aircraft with vectoring must still use control surfaces, but to a lesser ...ements'', 7th Edition.</ref><ref>Michael D. Griffin and James R. French, ''Space Vehicle Design'', Second Edition.</ref> ...

...l|0.00000000025}} || 3.5&nbsp;mm/year<ref>{{cite web |last1=NASA's Goddard Space Flight Center |title=Satellite sea level observations |url=https://climate. | [[Taipei 101]] observatory elevator || 16.7 || 54.8 || 60.6 || 37.6 || 1010 m/min ...

...needs – [[occupancy]], primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building ...ding)|duplex]]es'' or ''[[apartment building]]s''. ''[[Condominium (living space)|Condominium]]s'' are apartments that occupants [[homeownership|own]] rathe ...

{{short description|Concept of collecting solar power in outer space and distributing it to Earth}} ...lity of very little night, and a better ability to orient to face the Sun. Space-based solar power systems convert [[sunlight]] to some other form of energy ...

| Agriculture, scientific research, [[space colonization]] | Space-efficient farming and space travel applications<ref name=":0" /> ...

...rdous areas are [[petrochemical]] refineries, [[chemical plant]]s, [[grain elevator]]s, and [[coal mine]]s. ...corona]], can produce small quantities of toxic gases, which in a confined space can be a health hazard. These gases include oxidizers such as [[ozone]] an ...

...gate]]", based on Watson's discussion about being propositioned in a hotel elevator in the early morning after a skeptic event.<ref>{{cite news|last1= Watson|f ...b/20110908060753/http://mg.co.za/article/2011-09-02-dawkins-watson-and-the-elevator-ride |date=September 8, 2011 }} ''[[Mail & Guardian]]''</ref> ...

...e, M.W. "Lockheed credits Soviet theory in design of F-117", Aviation Week Space Technology p. 27, December 1991.</ref><ref>Rich, Ben and L. Janos, ''Skunk ...hang around |last=Gosnell |first=Mariana |date=July 2007 |website=Air and Space |access-date=1 July 2019}}</ref> and mission planning also considers altitu ...

{{short description|Mathematical model combining space and time}} ...tical model]] that fuses the [[three-dimensional space|three dimensions of space]] and the one dimension of [[time]] into a single [[four-dimensional]] [[co ...

...sedimentary]] layer of [[clay]] largely avoids both problems. The confined space in the tunnel also limits the machinery that can be used, but specialized [ ...tall [[air conditioning]] on most of its lines because the amount of empty space between the trains and tunnel walls is so small. Other lines were built wit ...

...terials and doses. Static discharge is also a particular hazard in [[grain elevator]]s owing to the danger of a [[dust explosion]],<ref>{{Cite journal |last=Gl ...ps://ntrs.nasa.gov/citations/20010027423 |journal=National Aeronautics and Space Administration |language=en}}</ref> Checking the status of these is a stand ...