This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

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... What is the notion time? ... Generally speaking, it is an order of changing events, an order of constantly changing conditions of solids, Universe - being. ... The time, determined for the given longitude, is called the local time . ... A uniform system of time counting - ephemeris time is tested by observations of the Moon turning around the Earth. Fully independent from astronomic observation uniform system of the time counting is based on the concept of atomic second (see quantum watches ). ...

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... Does the time it takes different methods to create all the elements coincide with the universeт??s accepted age? ... Illinois Urbana-Champaign) Different kinds of stars create elements at different rates, all of which are consistent with the age of the universe. Get instant access to subscriber content on Astronomy.com! ... Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below. ...

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. You have submitted a form or followed a link to a page that requires a web server and the FrontPage Server Extensions to function properly. This form or other FrontPage component will work correctly if you publish this web to a web server that has the FrontPage Server Extensions installed.

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... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... A few months ago, I wrote about how we know the Earth is round . ... As the Earth rotates, different parts of it face the Sun. ... A funny thing happens if you move west across a single time zone: the Sun will set at a different time at different locations! ... The Earth is a rotating ball, and people that live on different longitudes see the sun set at different times. ...

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After filling in and submitting this form it will be processed and sent to WDC for STP data manager responsible for the data of your interest. You will receive requested data by electronic mail according to your preference. ... E-mail address: . ... AE (Hourly), for 1957-1975 and 1978-1988 intervals . ... Kp/Ap (3-hourly), since 1932 . ... Enter start time of coverage interval: . ... Additional arbitrary information can be written in the text window as follows. Additional Information . ...

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Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...

68. http://observ.pereplet.ru/images/GRB081102/grb_film.html

69. jo0003

70. Victor Oknyanskij

71. Amateur Telescope Makers of Boston

72. http://www.atlasaerospace.net/eng/cont.htm

73. MaximDL и PinPoint с ошибкой "The plate's expos