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53:13
Colloquium: John Krizmanic, October 18, 2012
Colloquium: John Krizmanic, October 18, 2012
-
64:39
X-ray Optics
X-ray OpticsX-ray Optics
Lecture given by Dr. Janos Kirz to the OSA - UASLP Student Chapter in Oct-2012 entitled "X-ray Optics". Please enjoy.
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74:02
Seminar: Observational Techniques in X- and Gamma-Ray ...
Seminar: Observational Techniques in X- and Gamma-Ray ...Seminar: Observational Techniques in X- and Gamma-Ray ...
"Seminar: Observational Techniques in X- and Gamma-Ray Astronomy. Dr. Niels Lund. Emeritus scientist. DTU Space Technical University of Denmark".High-energy ...
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0:31
Naked Eye Gamma ray Burst Model for GRB 080319B
Naked Eye Gamma ray Burst Model for GRB 080319BNaked Eye Gamma ray Burst Model for GRB 080319B
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1:47
Light and Optics - Reflection and Mirrors
Light and Optics - Reflection and MirrorsLight and Optics - Reflection and Mirrors
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
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3:15
Infrared Optics vs Graphic Solarization on Celestial Obects PROVES NOTHING
Infrared Optics vs Graphic Solarization on Celestial Obects PROVES NOTHINGInfrared Optics vs Graphic Solarization on Celestial Obects PROVES NOTHING
It appears many people think solarizing a visible image w/ software will somehow allow you to see heat coming from an object. This video will put that fairy-...
-
9:05
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P2
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P2IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P2
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
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32:27
IIT JEE Ray Optics Help to Remember Various Magnification Formulae in Microscope Telescopes
IIT JEE Ray Optics Help to Remember Various Magnification Formulae in Microscope TelescopesIIT JEE Ray Optics Help to Remember Various Magnification Formulae in Microscope Telescopes
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
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12:49
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P1
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P1IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P1
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
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2:41
Light and Optics - Light
Light and Optics - LightLight and Optics - Light
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
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5:35
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P3
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P3IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P3
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
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18:27
IIT JEE Ray Optics Derive the formula for Refraction at Curved Surface Mu2-by-v-Mu1-by-u=(Mu2-Mu1)
IIT JEE Ray Optics Derive the formula for Refraction at Curved Surface Mu2-by-v-Mu1-by-u=(Mu2-Mu1)IIT JEE Ray Optics Derive the formula for Refraction at Curved Surface Mu2-by-v-Mu1-by-u=(Mu2-Mu1)
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
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2:00Light and Optics - Interactions of Light
Light and Optics - Interactions of LightLight and Optics - Interactions of Light
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
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1:59Light and Optics - Refraction and lenses
Light and Optics - Refraction and lensesLight and Optics - Refraction and lenses
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- Amplitude
- Asymptotic
- Brewster's angle
- Chromatic aberration
- Concave lens
- Convex lens
- Crest (physics)
- Curve
- Curved mirror
- Diffraction
- Dispersion (optics)
- Dispersion relation
- Eikonal equation
- Fermat's principle
- Fiber optics
- Focus (optics)
- Gaussian optics
- Geometrical optics
- Image
- Instrumentalism
- Isaac Newton
- Law of Reflection
- Lens (optics)
- Lensmaker's equation
- Light
- Line (geometry)
- Linear system
- Magnification
- Microlocal analysis
- Mirage
- Mirror
- Mirror image
- Optical aberration
- Optical medium
- Optics
- Oscillation
- Parabolic reflector
- Parallel (geometry)
- Parity (physics)
- Perpendicular
- Photocopiers
- Plane (geometry)
- Plane mirror
- Plane polarization
- Prism (optics)
- Ray (optics)
- Real image
- Reflection (physics)
- Refraction
- Refractive index
- Right angle
- Scanners
- Snell's Law
- Spectrum
- Specular reflection
- Spherical aberration
- Surface normal
- Template Main
- Transport equation
- Virtual image
- Wave propagation
- Wave vector
- Wavefront
- Wavelength
- Wiktionary collinear
- Wiktionary interface
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http://wn.com/Naked_Eye_Gamma_ray_Burst_Model_for_GRB_080319B
Colloquium: John Krizmanic, October 18, 2012
- Order: Reorder
- Duration: 53:13
- Updated: 22 Mar 2013
John Krizmanic CRESST/USRA/NASA/GSFC Title: Phase Fresnel Lens Development for X-ray & Gamma-Ray Astronomy Abstract: Angular resolution and effective area ar...
http://wn.com/Colloquium_John_Krizmanic,_October_18,_2012
John Krizmanic CRESST/USRA/NASA/GSFC Title: Phase Fresnel Lens Development for X-ray & Gamma-Ray Astronomy Abstract: Angular resolution and effective area ar...
- published: 06 Nov 2012
- views: 58
- author: UofUPhysAstro
X-ray Optics
- Order: Reorder
- Duration: 64:39
- Updated: 05 Jan 2013
Lecture given by Dr. Janos Kirz to the OSA - UASLP Student Chapter in Oct-2012 entitled "X-ray Optics". Please enjoy.
http://wn.com/X-ray_Optics
Lecture given by Dr. Janos Kirz to the OSA - UASLP Student Chapter in Oct-2012 entitled "X-ray Optics". Please enjoy.
- published: 05 Jan 2013
- views: 59
- author: OSA Chapter Uaslp
Seminar: Observational Techniques in X- and Gamma-Ray ...
- Order: Reorder
- Duration: 74:02
- Updated: 18 Jul 2013
"Seminar: Observational Techniques in X- and Gamma-Ray Astronomy. Dr. Niels Lund. Emeritus scientist. DTU Space Technical University of Denmark".High-energy ...
http://wn.com/Seminar_Observational_Techniques_in_X_and_Gamma-Ray_
"Seminar: Observational Techniques in X- and Gamma-Ray Astronomy. Dr. Niels Lund. Emeritus scientist. DTU Space Technical University of Denmark".High-energy ...
- published: 19 Apr 2013
- views: 71
- author: UAVideoTube
Naked Eye Gamma ray Burst Model for GRB 080319B
- Order: Reorder
- Duration: 0:31
- Updated: 11 Aug 2013
http://wn.com/Naked_Eye_Gamma_ray_Burst_Model_for_GRB_080319B
- published: 11 Aug 2013
- views: 23
Light and Optics - Reflection and Mirrors
- Order: Reorder
- Duration: 1:47
- Updated: 16 Aug 2013
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
http://wn.com/Light_and_Optics_Reflection_and_Mirrors
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- published: 24 Jul 2013
- views: 5
- author: NewPathLearning
Infrared Optics vs Graphic Solarization on Celestial Obects PROVES NOTHING
- Order: Reorder
- Duration: 3:15
- Updated: 28 Apr 2013
It appears many people think solarizing a visible image w/ software will somehow allow you to see heat coming from an object. This video will put that fairy-...
http://wn.com/Infrared_Optics_vs_Graphic_Solarization_on_Celestial_Obects_PROVES_NOTHING
It appears many people think solarizing a visible image w/ software will somehow allow you to see heat coming from an object. This video will put that fairy-...
- published: 17 Aug 2011
- views: 784
- author: foghaze
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P2
- Order: Reorder
- Duration: 9:05
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Refraction_in_a_Prism_r+r_dash=A_Minimum_Deviation_CBSE_ISc_Dezrina_P2
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 18
- author: Subhashish Chattopadhyay
IIT JEE Ray Optics Help to Remember Various Magnification Formulae in Microscope Telescopes
- Order: Reorder
- Duration: 32:27
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Help_to_Remember_Various_Magnification_Formulae_in_Microscope_Telescopes
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 46
- author: Subhashish Chattopadhyay
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P1
- Order: Reorder
- Duration: 12:49
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Refraction_in_a_Prism_r+r_dash=A_Minimum_Deviation_CBSE_ISc_Dezrina_P1
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 28
- author: Subhashish Chattopadhyay
Light and Optics - Light
- Order: Reorder
- Duration: 2:41
- Updated: 16 Aug 2013
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
http://wn.com/Light_and_Optics_Light
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- published: 24 Jul 2013
- views: 5
- author: NewPathLearning
IIT JEE Ray Optics Refraction in a Prism r+r dash=A Minimum Deviation CBSE ISc Dezrina P3
- Order: Reorder
- Duration: 5:35
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Refraction_in_a_Prism_r+r_dash=A_Minimum_Deviation_CBSE_ISc_Dezrina_P3
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 19
- author: Subhashish Chattopadhyay
IIT JEE Ray Optics Derive the formula for Refraction at Curved Surface Mu2-by-v-Mu1-by-u=(Mu2-Mu1)
- Order: Reorder
- Duration: 18:27
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Derive_the_formula_for_Refraction_at_Curved_Surface_Mu2-by-v-Mu1-by-u=Mu2-Mu1
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 21
- author: Subhashish Chattopadhyay
Light and Optics - Interactions of Light
- Order: Reorder
- Duration: 2:00
- Updated: 16 Aug 2013
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
http://wn.com/Light_and_Optics_Interactions_of_Light
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- published: 24 Jul 2013
- views: 5
- author: NewPathLearning
Light and Optics - Refraction and lenses
- Order: Reorder
- Duration: 1:59
- Updated: 16 Aug 2013
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
http://wn.com/Light_and_Optics_Refraction_and_lenses
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- published: 24 Jul 2013
- views: 4
- author: NewPathLearning
Online Inspection of Closed Packages
- Order: Reorder
- Duration: 10:00
- Updated: 14 Aug 2013
Online inspection of closed packages. An innovative product that does not use harmful rays like X-Ray, Gamma Ray or Microwaves. It also uses no optics or gra...
http://wn.com/Online_Inspection_of_Closed_Packages
Online inspection of closed packages. An innovative product that does not use harmful rays like X-Ray, Gamma Ray or Microwaves. It also uses no optics or gra...
- published: 20 Mar 2010
- views: 1206
- author: QurafTechnologies
Light and Optics - Wave Interactions
- Order: Reorder
- Duration: 2:18
- Updated: 16 Aug 2013
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
http://wn.com/Light_and_Optics_Wave_Interactions
To access a comprehensive array of complete multimedia lessons visit http://www.newpathlearning.com -Light and Optics http://newpathlive.com/j9 --Light ---El...
- published: 24 Jul 2013
- views: 6
- author: NewPathLearning
DUBSTEP MIME - Downlink - Gamma Ray Burst SPED UP TO 186BPM
- Order: Reorder
- Duration: 3:06
- Updated: 12 Aug 2013
Sped up on virtual DJ, mimed in real time. next-level tongue exercise, overly painful. enjoy.
http://wn.com/DUBSTEP_MIME_Downlink_Gamma_Ray_Burst_SPED_UP_TO_186BPM
Sped up on virtual DJ, mimed in real time. next-level tongue exercise, overly painful. enjoy.
- published: 07 May 2012
- views: 28531
- author: esoterradubstep
Line 18 a3z2b4 Neutrino Spectrum Plutonium-Beryllium Carbon Energy Gamma Rays 5g WOW SETI
- Order: Reorder
- Duration: 5:30
- Updated: 28 Dec 2012
http://ideagirlseverestormpredictionswarnings.wordpress.com/ http://alienspacesciencenews.wordpress.com/ http://theideagirlsays.wordpress.com/ http://victori...
http://wn.com/Line_18_a3z2b4_Neutrino_Spectrum_Plutonium-Beryllium Carbon_Energy_Gamma_Rays_5g_WOW_SETI
http://ideagirlseverestormpredictionswarnings.wordpress.com/ http://alienspacesciencenews.wordpress.com/ http://theideagirlsays.wordpress.com/ http://victori...
- published: 06 Mar 2012
- views: 70
- author: theideagirlsays
Call of duty Modern warfare 3 Lock on target
- Order: Reorder
- Duration: 0:19
- Updated: 01 Jul 2013
in this video i learned and made Lock on target.. this clip is from my ..http://www.youtube.com/watch?v=9YhyKIldaqU... Be sure to Check it out hope u enjoyed...
http://wn.com/Call_of_duty_Modern_warfare_3_Lock_on_target
in this video i learned and made Lock on target.. this clip is from my ..http://www.youtube.com/watch?v=9YhyKIldaqU... Be sure to Check it out hope u enjoyed...
- published: 17 Jul 2012
- views: 205
- author: Sgt.Mak
Optic'B montage monture optique "essilor Gamma"
- Order: Reorder
- Duration: 5:50
- Updated: 06 Jun 2013
montage de monture optique par Optic'B Frontofocomètre automatique "essilor CLE 60" http://www.facebook.com/OPTICBEN meuleuse automatique "essilor gamma"
http://wn.com/Optic'B_montage_monture_optique_essilor_Gamma
montage de monture optique par Optic'B Frontofocomètre automatique "essilor CLE 60" http://www.facebook.com/OPTICBEN meuleuse automatique "essilor gamma"
- published: 27 Nov 2012
- views: 475
- author: bensala nassim
IIT-JEE-1995-Optics-Parallel rays bending and meeting due to Prism
- Order: Reorder
- Duration: 3:49
- Updated: 30 May 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/science-tuition-chemistry-physics-mathematics-for-iit-jee-aieee-std-11-12-pu-isc-cbse/...
http://wn.com/IIT-JEE-1995-Optics-Parallel_rays_bending_and_meeting_due_to_Prism
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/science-tuition-chemistry-physics-mathematics-for-iit-jee-aieee-std-11-12-pu-isc-cbse/...
- published: 30 Nov 2011
- views: 52
- author: Subhashish Chattopadhyay
IIT JEE Ray Optics Achromatic Combination of Lenses Touching each other Physics Dezrina CBSE
- Order: Reorder
- Duration: 10:29
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_Achromatic_Combination_of_Lenses_Touching_each_other_Physics_Dezrina_CBSE
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 41
- author: Subhashish Chattopadhyay
IIT JEE Ray Optics HCV-Pg417-Pr-78-Part-2 Momentum in mirror collision Physics Dezrina
- Order: Reorder
- Duration: 2:31
- Updated: 18 Aug 2013
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
http://wn.com/IIT_JEE_Ray_Optics_HCV-Pg417-Pr-78-Part-2_Momentum_in_mirror_collision_Physics_Dezrina
Learn Physics Mathematics at links http://zookeepersblog.wordpress.com/iit-jee-ipho-apho-physics-mathematics-videos-for-std-9-to-12/ for IIT JEE Solutions In...
- published: 21 Jun 2013
- views: 16
- author: Subhashish Chattopadhyay
photo: White House / Pete Souza
20 Feb 2014
Of all the time-honored failings for which we criticize sitting presidents — by “we” I mean pundits, academics and other members of the chattering phylum — two charges stand out. imperialism and shrinkage. Usually it’s one or the other ... When the Republicans lost control of Congress in 2006, the Economist proclaimed “The Incredible Shrinking Presidency” of George W. Bush on its cover ... Rep ... Rep ... ....(size: 5.1Kb)
photo: WN / Imran Nissar
20 Feb 2014
The war in Syria began much earlier than is generally recognised. The conflict actually began in the year 632 with the death of the Prophet Mohamed. The same is true of the violence, tension or oppression currently gripping the Muslim world from Iraq and Iran, though Egypt, Bahrain and Saudi Arabia to Yemen, Pakistan and Afghanistan. A single problem lies behind all that friction and hostility ... But Mohamed had no son, only a daughter ... ....(size: 11.5Kb)
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Newstrack India
21 Feb 2014
Tweet. Washington, Feb 21 (ANI) ... Black widow systems contain stars that are both physically smaller and of much lower mass than those found in redbacks ... When young, an isolated neutron star rotates tens of times each second-or a few thousand revolutions per minute-and generates beams of radio, visible light, X-rays and gamma rays that astronomers observe as pulsed emission whenever the beams sweep past Earth ... (ANI). Post comments.. ) .. ).....(size: 2.6Kb)
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The Siasat Daily
21 Feb 2014
Washington, February 21. ... Black widow systems contain stars that are both physically smaller and of much lower mass than those found in redbacks ... When young, an isolated neutron star rotates tens of times each second -- or a few thousand revolutions per minute -- and generates beams of radio, visible light, X-rays and gamma rays that astronomers observe as pulsed emission whenever the beams sweep past Earth ... (ANI). Recommend Twitter ... ....(size: 3.6Kb)
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Business Insider
20 Feb 2014
The image above shows the supernova remnant Cassiopeia A (or Cas A for short) with NuSTAR data in blue and observations from the Chandra X-ray Observatory in red, green, and yellow ... One of the leading ones has the star ripped apart by powerful jets firing from its poles — something that’s associated with even more powerful (but focused) gamma-ray bursts....(size: 15.3Kb)
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Space
20 Feb 2014
In 1976, NASA's Viking Orbiter spotted early morning water-ice clouds in the Valles Marineris region near the Martian equator ... Credit. NASA/JPL View full size image ... On Feb ... Morning fog and frost ... And then it sublimates immediately after sunrise ... During these passes, the Gamma Ray Spectrometer searched for evidence of water near the Martian surface, and made important discoveries relating to the distribution of water ice on the surface ... ....(size: 5.8Kb)
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The Guardian
20 Feb 2014
Newcastle is home to a booming craft-beer scene that offers a range of great real-ale pubs and canny new-wave beer bars. All hail to the ale … Pleased to Meet You, High Bridge, Newcastle. Pleased To Meet You ... PTMY has two sister bars in Newcastle ... A half of Beavertown's American pale ale, Gamma Ray, was, as ever, brilliant – full of tropical fruit flavours, unapologetically bitter – and very bloody expensive (£2.80) ... Photograph ... ....(size: 12.0Kb)
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Houston Chronicle
19 Feb 2014
The series of X-rays delivered in CT imaging use ionizing radiation, and it's the process of ionization that has the ability to cause cellular change from normal to malignant and, therefore, cause cancer ... The risk comes with X-rays used in radiology and gamma rays used in nuclear medicine, such as positron emission tomography (PET) ... The radiation dose in CT imaging is 500 times more than normal X-ray imaging....(size: 4.6Kb)
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Space
18 Feb 2014
Radiation Assessment Detector ... Credit. JPL. View full size image ... Credit ... We sometimes worry over CAT scans, chest X-rays or transcontinental flights ... Solar energetic particles (SEPs) and galactic cosmic rays (GCRs) turn a trip to Mars into a six-month radiation shower ... On impacting the surface, the GCRs and strong SEPs from space produce gamma rays and neutrons easily capable of breaking molecular bonds in the soil ... Credit ... . ... ....(size: 8.7Kb)
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noodls
17 Feb 2014
(Source. University of Western Australia) ... ESO telescopes have made some of the most significant astronomical discoveries of recent times, including the supermassive black hole at the centre of our galaxy, the most distant gamma-ray burst, the Earth-like planet Gliese 581c and the most distant galaxy ever seen by humans ... His research focuses on the formation, structure and dynamics of galaxies ... distributed by ... (noodl. 22016172) ....(size: 2.4Kb)
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noodls
13 Feb 2014
She talked about Gamma Ray Bursts (GRBs) - the most powerful explosions in the Universe -describing the recent advances in ground-based telescopes catching the light that signals the birth of a new black hole ... In 2013, Carole and her GRB team along with the Liverpool Telescope and the Faulkes Telescope, captured the never-seen-before details of an event that challenged current theoretical understanding of how gamma-ray bursts work....(size: 2.7Kb)
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New Scientist
13 Feb 2014
India may soon join the worldwide effort to find space-time ripples. Prime Minister Manmohan Singh recently told the Indian Science Congress that his nation intends to host a crucial part of the world's largest gravitational wave observatory ... This is important for other radio, optical, X-ray and gamma-ray telescopes so they can follow up observations of these cosmic events with their own observation. Seismic silence ... Gravity excites ... ....(size: 2.6Kb)
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The State
13 Feb 2014
A news flash for every straight man out there. You’ve been naked in front of a gay man. In fact you’ve been naked, over the course of your life, in front of many gay men, at least if you have more than a few years on you. And here you are — uninjured, uncorrupted, intact. The Earth still spins. The sun rises and sets ... He certainly wasn’t beaming special gay-conversion gamma rays at you ... Some were not ... Step away ... ....(size: 4.9Kb)
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NASA Moves Longest-Serving Mars Spacecraft for New Observations (NASA - The National Aeronautics and Space Administration)
noodls13 Feb 2014
(Source. NASA - The National Aeronautics and Space Administration) NASA's Mars Odyssey spacecraft has tweaked its orbit to help scientists make the first systematic observations of how morning fogs, clouds and surface frost develop in different seasons on the Red Planet. Image Credit. ... EST) ... That orbit provided an advantage for the orbiter's Gamma Ray Spectrometer to have its cooling equipment pointed away from the sun....(size: 5.8Kb)
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Space
12 Feb 2014
NASA's Chandra X-ray Observatory gathered data that was used to create the new photo of the galaxy Centaurus A — which is located about 12 million light-years from Earth ... NASA considers the Chandra X-ray Observatory one of the space agency's "Great Observatories" with the Hubble Space Telescope, the Spitzer Space Telescope and the now defunct Compton Gamma Ray Observatory....(size: 4.3Kb)
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Geometrical optics, or ray optics, describes light propagation in terms of "rays". The "ray" in geometric optics is an abstraction, or "instrument", which can be used to approximately model how light will propagate. Light rays are defined to propagate in a rectilinear path as far as they travel in a homogeneous medium. Rays bend (and may split in two) at the interface between two dissimilar media, may curve in a medium where the refractive index changes, and may be absorbed and reflected. Geometrical optics provides rules, which may depend on the color (wavelength) of the ray, for propagating these rays through an optical system. This is a significant simplification of optics that fails to account for optical effects such as diffraction and interference. It is an excellent approximation, however, when the wavelength is very small compared with the size of structures with which the light interacts. Geometric optics can be used to describe the geometrical aspects of imaging, including optical aberrations.
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http://en.wikipedia.org/wiki/Geometrical_optics
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
Gamma radiation, also known as gamma rays or hyphenated as gamma-rays and denoted as γ, is electromagnetic radiation of high frequency and therefore energy. Gamma rays are ionizing radiation and are thus biologically hazardous. Gamma rays are classically produced by the decay from high energy states of atomic nuclei (gamma decay), but also in many other ways. Natural sources of gamma rays on Earth include gamma decay from naturally-occurring radioisotopes such as potassium-40, and also as a secondary radiation from various atmospheric interactions with cosmic ray particles. Some rare terrestrial natural sources that produce gamma rays that are not of a nuclear origin, are lightning strikes and terrestrial gamma-ray flashes, which produce high energy emissions from natural high-energy voltages. Gamma rays are produced by a number of astronomical processes in which very high-energy electrons are produced. Such electrons produce secondary gamma rays by the mechanisms of bremsstrahlung, inverse Compton scattering and synchrotron radiation. A large fraction of such astronomical gamma rays are screened by Earth's atmosphere and must be detected by spacecraft. Notable artificial sources of gamma rays include fission such as occurs in nuclear reactors, and high energy physics experiments, such as neutral pion decay and nuclear fusion.
This page contains text from Wikipedia, the Free Encyclopedia -
http://en.wikipedia.org/wiki/Gamma_ray
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
