Archive for Science
The Primordial Density Perturbation: Cosmology, Inflation and the Origin of Structure
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This graduate-level textbook gives a thorough account of theoretical cosmology and perturbations in the early Universe, describing their observational consequences and showing how to relate such observations to primordial physical processes, particularly cosmological inflation. With ambitious observational programs complementing ever-increasing sophistication in theoretical modeling, cosmological studies will remain at the cutting edge of astrophysical studies for t… More >>
The Primordial Density Perturbation: Cosmology, Inflation and the Origin of Structure
Hubble Space Telescope: New Views of the Universe
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How did the universe begin? How big is it? What is it made of? What is its ultimate fate? These are some of the questions that scientists have been investigating with the Hubble Space Telescope since its launch in 1990. Not only is Hubble providing us with an unprecedented amount of information about the universe, but its breathtaking images-disseminated in the press and over the Internet-have excited more people around the world than any other images made in the la… More >>
TwinStar White 70mm iOptron Computerized GPS Equatorial Refractor Telescope
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- 70mm fully coated, achromatic objective lens
- 700mm focal length — f10
- 4mm, 10mm & 20mm Eyepieces & 2x Barlow Lens included
- iOptron SmartStar-A Computer Controlled GPS Equatorial Mount
- iOptron GoToNova Controller with 80,000 Celestial Object Database
Product Description
This GPS telescope does it all with just the push of a button. Simply turn the telescope on, choose the object you want to see on the handheld controller and the computerized mount does the rest. North Star alignment not necessary with GPS. This incredibly balanced telescope is ideal both for space viewing and daytime observing. With a large 70mm aperture this telescope has a third more light gathering power than most smaller scopes. The fully coated achromatic 70mm… More >>
TwinStar White 70mm iOptron Computerized GPS Equatorial Refractor Telescope
Principles of Cosmology and Gravitation
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General relativity and quantum mechanics have become the two central pillars of theoretical physics. Moreover, general relativity has important applications in astrophysics and high-energy particle physics. Covering the fundamentals of the subject, Principles of Cosmology and Gravitation describes the universe as revealed by observations and presents a theoretical framework to enable important cosmological formulae to be derived and numerical calculations performed…. More >>
White TwinStar 4.5″ Reflector Telescope Fast f/4.4 EQ Mount
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- Spherical 114mm (4.5 inches) objective mirror, 500mm focal length
- Fast f/4.4 F-ratio for outstanding brightness
- 25mm & 10mm Plossl 1.25″ Diameter Eyepieces Included
- EQ Mount and Tripod w/Accessory Tray are Included (RA motor drive is available)
- Step-by-step Color Photo Online Assembly Guide
Product Description
Rich-Field 4.5 Inch Newtonian Reflector Telescope. Possibly the best reflector telescope value available today, this 4.5″ scope boasts a short 500mm focal length. As a result, this scope packs a super-fast F/4.4 F-ratio, making it an extremely powerful instrument for wide-field and deep space astronomy. With its tremendous light-gathering power, you can observe fabulous nebulae, galaxies, binary star systems and most of the famed deep space Messier objects in d… More >>
Hubble constant and dark energy measure universe
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A paper in the March edition of The Astrophysics Journal said current astronomical efforts are being made to utilize gravitational lenses to measure the Hubble constant, a scientific value which can determine the size and age of the universe.
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Hubble Space Telescope – Chapter 1
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Part 1 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: www.spacetelescope.org
White TwinStar AstroMark 50mm 75x Power Refractor Telescope
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- 50mm Achromatic objective lens, 600mm focal length
- Great Beginner Scope — Easy to Use, Just “Point & Shoot”
- 30x and 75x Magnification from H20mm & H8mm .965″ Diameter Eyepieces
- Altazimuth Mount and Full-Size Tripod are Included
- Step-by-step Color Photo Online Assembly Guide
Product Description
Here is our best value, full-featured telescope. This simple to assemble and easy to use refractor telescope will amaze and astonish you with its outstanding views of the Moon, Saturn’s Rings and plenty of deep-space objects such as the Beehive star clusters, the Orion Nebulae and binary star systems. Sporting a 50mm objective lens and a long 600mm focal length, this telescope can achieve magnifications from 30x to 75x using the two included eyepieces. Also included… More >>
The Inflationary Universe
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- ISBN13: 9780201328400
- Condition: NEW
- Notes: Brand New from Publisher. No Remainder Mark.
Product Description
This is the compelling, first-hand account of Alan Guth’s paradigm-breaking discovery of the origins of the universe—and of his dramatic rise from young researcher to physics superstar. Guth’s startling theory—widely regarded as one of the most important contributions to science during the twentieth century—states that the big bang was set into motion by a period of hyper-rapid “inflation,” lasting only a billion-trillion-billionth of a second. The Inf… More >>
Hubble Space Telescope – Chapter 3
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Part 3 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: www.spacetelescope.org Interested in scientific theory relating to the creation of our universe and beyond? Try some of these links scienceline.org www.space.com www.berkeley.edu Wrap some brain cells around that!
