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Absorbance of UV light by glass
Sep 19, 2009
Replies
2
Views
17K
How to change the polarization of the light
Sep 17, 2009
Replies
2
Views
7K
Compton vs. Raman vs. Thomson Scattering
Sep 17, 2009
Replies
3
Views
16K
Dispersion/Refraction, but WHY?
Sep 17, 2009
Replies
13
Views
3K
Light absorption in solar cell.
Sep 17, 2009
Replies
2
Views
2K
Reflection and Total Internal Reflection
Sep 16, 2009
Replies
2
Views
5K
When Feynman describes scatterers
Sep 16, 2009
Replies
4
Views
2K
Light speed Impossible Faster than lightProbable?
Sep 16, 2009
Replies
5
Views
8K
Modeling the flight of a frisbee
Sep 14, 2009
Replies
4
Views
4K
Measuring the intensity of light
Sep 14, 2009
Replies
4
Views
3K
Why can't light go thru solids?
Sep 13, 2009
Replies
5
Views
3K
Earth's Surface Area that reflects light
Sep 11, 2009
Replies
6
Views
4K
Questions about lasers and diffraction
Sep 10, 2009
Replies
2
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3K
Light rays in concave lens,moon and eclipses?
Sep 10, 2009
Replies
7
Views
5K
Do Red Lasers of 314mW Pose a Safety Risk?
Sep 9, 2009
Replies
5
Views
2K
Wavelength -> antenna, waveguides, mirrors ets
Sep 8, 2009
Replies
3
Views
2K
Light Reflection Mystery at the Rijksmuseum Amsterdam
Sep 8, 2009
Replies
4
Views
1K
Can you relate sound frequency's to light frequency's?
Sep 8, 2009
Replies
6
Views
9K
Light, and from whence it cometh.
Sep 7, 2009
Replies
8
Views
2K
Does Refraction through a Glass Slab Cause Different Levels of Image Distortion?
Sep 6, 2009
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7
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12K
Light changes frequency depending on
Sep 5, 2009
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4
Views
3K
Why placing a blue filter in front of a light source will give blue li
Sep 2, 2009
Replies
2
Views
2K
Comparing Magnetic Attraction: Iron vs. Opposite Polarity
Aug 31, 2009
Replies
12
Views
5K
Confusion with faster than light
Aug 30, 2009
Replies
28
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5K
Thin, light, cheap and strong as wood material?
Aug 30, 2009
Replies
8
Views
72K
Non Quantized Light: Could It Produce Energy Below Photon?
Aug 30, 2009
Replies
4
Views
2K
Efficient Laser Beam Expansion Techniques for Optimal Illumination
Aug 28, 2009
Replies
8
Views
8K
Modeling a lense using the intersection of two spheres
Aug 28, 2009
Replies
2
Views
2K
Half-silvered mirrors and transmission and reflection
Aug 27, 2009
Replies
2
Views
3K
Spectrum of Hot & Cold Fire: How Can It Be?
Aug 26, 2009
Replies
2
Views
2K
Light Through a Medium: Exploring the Physics
Aug 26, 2009
2
Replies
42
Views
17K
Fading Ink on Book Covers: Sunlight Cause?
Aug 26, 2009
Replies
2
Views
5K
Principle of lightining conductor
Aug 22, 2009
Replies
2
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2K
Polarization of Light at Boundary: Exploring the Brewster Angle and Absorption
Aug 22, 2009
Replies
11
Views
4K
Can a 10 Watt Globe be Powered by 24V?
Aug 21, 2009
Replies
9
Views
2K
Hyugens principle and laser wave dispersion
Aug 21, 2009
Replies
27
Views
10K
How much mass does it take before photons will have a stable orbit?
Aug 21, 2009
Replies
5
Views
2K
Help with my large mirror and camera.
Aug 20, 2009
Replies
2
Views
2K
Sun Setting Illusion: Explaining Constant Angular Speed
Aug 19, 2009
Replies
5
Views
3K
Lightwave Oven: Why We Heat Food With Microwave
Aug 19, 2009
Replies
4
Views
4K
Light/radio waves radiate in all direction
Aug 19, 2009
Replies
5
Views
3K
Concentration of photons in a beam of light
Aug 18, 2009
Replies
11
Views
10K
Why do some objects reflect more light than others?
Aug 16, 2009
Replies
4
Views
9K
How to understand the image of lens at infinity
Aug 16, 2009
Replies
8
Views
25K
Creating a Computer Flight Model: Best Starting Place for Aerodynamic Theory
Aug 15, 2009
Replies
6
Views
3K
Why does mass not affect gas pressure in ideal gas law?
Aug 15, 2009
Replies
3
Views
10K
Light OR Sound? - Unraveling the Mystery
Aug 15, 2009
Replies
3
Views
2K
What is the cause of my peculiar vision abnormality?
Aug 13, 2009
Replies
8
Views
2K
Why does the wave of color that has a greater index of refraction bend more?
Aug 12, 2009
Replies
3
Views
8K
Help with thin lenses and uncertanty
Aug 12, 2009
Replies
5
Views
4K
Exploring Telescope Specs: What Do They Mean?
Aug 12, 2009
Replies
2
Views
2K
Lightning Rod attached to railing of my balcony
Aug 11, 2009
Replies
8
Views
6K
Why does wavelength affect an object's interaction with waves?
Aug 10, 2009
Replies
5
Views
3K
Unanswered Questions on Light: Control & Visibility
Aug 4, 2009
Replies
3
Views
1K
Explaining a Bath Time Reflection Puzzle
Aug 4, 2009
Replies
2
Views
1K
Strong laser pointers - facts?
Aug 4, 2009
Replies
12
Views
5K
Atmospheric Opacity and laser Attenuation query
Aug 2, 2009
Replies
6
Views
4K
How much energy can a black metal surface absorb from direct sunlight?
Jul 31, 2009
Replies
9
Views
4K
Does Coherent Light Waves Frequency Matter?
Jul 31, 2009
Replies
2
Views
3K
Gravity Accelerating Objects To The Speed Of Light
Jul 31, 2009
Replies
12
Views
3K
How Can You Align a Thin Electrode Parallel to a Surface Without Direct Contact?
Jul 30, 2009
Replies
2
Views
2K
Light is known to have a wave-particle duality
Jul 30, 2009
Replies
9
Views
2K
Coherent Light Waves: Interference & Diffraction Explained
Jul 30, 2009
Replies
3
Views
4K
The propagation of light through a vacuum.
Jul 30, 2009
Replies
9
Views
4K
Understanding the Formula for Dark Fringe in Single-Slit Diffraction
Jul 30, 2009
Replies
2
Views
3K
How do photons behave when entering a prism?
Jul 29, 2009
Replies
2
Views
2K
Laser in Outer Space: Will It Go On Forever?
Jul 29, 2009
Replies
3
Views
3K
What is the feasibility of using laser pointers to paint the moon?
Jul 29, 2009
Replies
3
Views
7K
Observations takne at the speed of light
Jul 29, 2009
Replies
8
Views
2K
Can a Laser Light Be Magnified with a Magnifying Glass?
Jul 28, 2009
Replies
14
Views
3K
Is There a Real Difference Between Diffraction and Interference in Physics?
Jul 28, 2009
Replies
2
Views
3K
Poincare sphere and Degree of polarization
Jul 28, 2009
Replies
2
Views
6K
Does Light Amplitude Depend on Frequency?
Jul 27, 2009
Replies
2
Views
2K
Hanging a mirror with two off-center nails
Jul 26, 2009
Replies
22
Views
22K
Traveling .999999 reapeating the speed of light .
Jul 26, 2009
Replies
15
Views
3K
Understanding Light Polarization: Clearing Up Confusion for Better Comprehension
Jul 24, 2009
Replies
5
Views
3K
Optical Question: HeNe Beam Through Potassium Permanganate
Jul 23, 2009
Replies
2
Views
2K
Humans Traveling at Light Speed: A Possibility?
Jul 23, 2009
Replies
2
Views
1K
Does a photon experience time or space?
Jul 23, 2009
Replies
27
Views
8K
Single Slit Interference: Explaining the Phenomenon
Jul 22, 2009
Replies
4
Views
3K
Is the group velocity necessarily slower than light (STL)?
Jul 20, 2009
Replies
6
Views
3K
Setting a vector to another magnitude
Jul 19, 2009
Replies
2
Views
6K
Transparency and refractive index
Jul 19, 2009
Replies
2
Views
6K
Does shiny aluminum foil reflect infrared photons?
Jul 18, 2009
Replies
3
Views
2K
Optical phenomena with colliding river rocks
Jul 18, 2009
Replies
3
Views
2K
Introduction to Optics: Books for Grad Students
Jul 16, 2009
Replies
2
Views
2K
Attractive and repulsive light force
Jul 16, 2009
Replies
3
Views
3K
Exploring the Physics of Time Travel at Light Speed
Jul 15, 2009
Replies
2
Views
1K
Diffraction of incoherent beam
Jul 15, 2009
Replies
6
Views
12K
Calculate angle of reflection.
Jul 14, 2009
Replies
3
Views
7K
Why can wireless internet signals pass through walls when visible light cannot?
Jul 14, 2009
Replies
5
Views
20K
How can I calculate torque and RPM for a P-51 Mustang in a Blender3d simulation?
Jul 11, 2009
Replies
2
Views
3K
Working with Lasers: Safety Procedures & Intensity
Jul 10, 2009
Replies
33
Views
4K
How can refraction be explained using Fermat's principle?
Jul 8, 2009
Replies
3
Views
10K
How Do Polygonal Mirrors Affect Scan Systems Without Lenses?
Jul 8, 2009
Replies
2
Views
1K
Reaching the Speed of Light: Effects in Atmosphere & Space
Jul 7, 2009
Replies
12
Views
2K
How does the refractive index change with the wavelength of light?
Jul 7, 2009
Replies
4
Views
2K
Intensity Profile of Lambert's Scatterer
Jul 5, 2009
Replies
2
Views
3K
Can we create artificial lightning?
Jul 4, 2009
Replies
11
Views
10K
A Closer Look at Microwave Pizzas & Their Cardboard Disks
Jul 2, 2009
2
Replies
50
Views
30K
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