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Absolute Zero & Speed of Light
Jan 27, 2011
Replies
15
Views
13K
Can You Measure the Speed of Light at Home Like 19th Century Scientists?
Jan 27, 2011
Replies
1
Views
3K
Why Is Light Considered a Wave When It Travels Without a Medium?
Jan 26, 2011
Replies
3
Views
3K
Determining X-ray strength and exposure
Jan 26, 2011
Replies
2
Views
7K
How Can You Measure Light Wavelengths Using Microscope Slides and Rubber Bands?
Jan 25, 2011
Replies
2
Views
3K
Optics & Resolution: Can I See the Peak?
Jan 25, 2011
Replies
8
Views
3K
Find Parallel Polarized E Field Reflection Direction
Jan 23, 2011
Replies
1
Views
2K
Why Does Light Have a Maximum Speed?
Jan 23, 2011
Replies
4
Views
3K
Photon in a massless mirrored box
Jan 23, 2011
Replies
4
Views
2K
Light Frequency: What is the Lowest/Highest Frequency?
Jan 23, 2011
Replies
4
Views
4K
Refraction at normal incidence
Jan 23, 2011
Replies
11
Views
6K
E = Em sin(kx-wt) and I = T+R what wavelength is reflected wave
Jan 23, 2011
Replies
2
Views
8K
Reflection coefficient (osmosis)
Jan 22, 2011
Replies
4
Views
15K
Cause of Lightning: What is the Real Explanation?
Jan 21, 2011
Replies
3
Views
2K
Diffractive optics and achromaticism
Jan 21, 2011
Replies
3
Views
2K
Why do I look different in pictures versus a mirror?
Jan 21, 2011
Replies
6
Views
10K
Really confused about skylight polarization
Jan 20, 2011
Replies
4
Views
3K
Why Do Rain Clouds Produce Lightning While Normal Clouds Don’t?
Jan 20, 2011
Replies
5
Views
2K
Help needed, no calculations just theory light and waves
Jan 20, 2011
Replies
2
Views
2K
Best way to get a large rectangular magnifying mirror
Jan 18, 2011
Replies
10
Views
14K
Can a High Power Laser Melt a Prism and How to Make a Reflective Missile?
Jan 18, 2011
Replies
5
Views
4K
Is a Math/CS Background Suitable for Graduate Studies in Photonics?
Jan 16, 2011
Replies
3
Views
4K
Photons and human distance perception
Jan 15, 2011
Replies
2
Views
2K
How does UV light pass a glass bulb?
Jan 15, 2011
Replies
1
Views
4K
Where does a photon distort spacetime?
Jan 15, 2011
Replies
3
Views
2K
Interesting Optics Measurements?
Jan 15, 2011
Replies
6
Views
2K
Atmospheric Extinction of Light
Jan 14, 2011
Replies
5
Views
2K
How does rainbow form? And Light Question
Jan 13, 2011
Replies
18
Views
10K
Confused about dispersion (optics)
Jan 12, 2011
Replies
9
Views
4K
Gravitational force affected by refraction?
Jan 11, 2011
Replies
1
Views
2K
Please educate me on light/matter
Jan 11, 2011
Replies
5
Views
4K
Light Reflection: Does Electric Source Affect Places A, B & C?
Jan 11, 2011
Replies
5
Views
3K
Explaining the Speed of Light Coincidence in the Quran: A Scientific Perspective
Jan 10, 2011
Replies
2
Views
2K
[optics] Those weird blue Christmas lights
Jan 9, 2011
Replies
11
Views
11K
Theory Q: "Persistence of Light Inside an Impenetrable Sphere?
Jan 9, 2011
Replies
7
Views
2K
Why is there a lack of lightning during winter?
Jan 9, 2011
Replies
25
Views
33K
Naive question about the speed of light
Jan 8, 2011
Replies
4
Views
2K
Is it only the speed of light in a vacuum that is constant for all observers?
Jan 7, 2011
Replies
20
Views
5K
Calculating Optimum Distance for Focusing Diverging Light
Jan 7, 2011
Replies
11
Views
10K
Total Internal reflection is Glass Prism Question
Jan 6, 2011
Replies
3
Views
6K
Question about light getting through a aperture (full stops, f/#)
Jan 6, 2011
Replies
6
Views
2K
Why is the speed of light constant?
Jan 5, 2011
2
Replies
79
Views
15K
Reflection of light through a wine glass with water
Jan 5, 2011
Replies
1
Views
6K
Calculating focal length for aspherical lenses
Jan 4, 2011
Replies
17
Views
21K
Radio Wave Basics: Generating & Using Information
Jan 4, 2011
Replies
1
Views
3K
What is the actual explanation of diffraction?
Jan 4, 2011
Replies
2
Views
5K
Order of Diffraction Explained: Animation & Detailed Explanation
Jan 3, 2011
Replies
3
Views
29K
Fuel Consumption of a Ship Traveling at Near Light Speed
Jan 1, 2011
Replies
38
Views
8K
If we were to absorb all the incident light falling upon us
Dec 31, 2010
Replies
5
Views
3K
What Are Effective Methods for Mounting a Cylinder Microlens?
Dec 31, 2010
Replies
3
Views
3K
Absorbtion,reflection,and emission.
Dec 31, 2010
Replies
1
Views
2K
Using a solar cell as a qualitative test of laser intensity
Dec 29, 2010
Replies
5
Views
3K
Why does polarized light shift color in reflections on the sea?
Dec 29, 2010
Replies
2
Views
3K
Am I missing something or is this faster than light
Dec 29, 2010
Replies
24
Views
4K
A question concerning lenses and the resulting images
Dec 28, 2010
Replies
1
Views
2K
Can It Be Proven That Optics Field Amplitudes Satisfy Negative Frequencies?
Dec 28, 2010
Replies
4
Views
2K
What is transformer polarity and how does it affect the output?
Dec 27, 2010
Replies
2
Views
6K
Why is wave intensity defined as displacement^2 rather than just its magnitude?
Dec 27, 2010
Replies
1
Views
3K
How a Magnetron Produces Microwaves: A Comprehensive Guide
Dec 25, 2010
Replies
2
Views
3K
Why does light travel so slow?
Dec 25, 2010
Replies
6
Views
5K
Is laser light polarized or unpolarized?
Dec 23, 2010
Replies
3
Views
56K
Single Photon Emission: Examining the Evidence
Dec 23, 2010
Replies
6
Views
2K
How Do Atoms Influence the Direction of Light During Refraction?
Dec 22, 2010
Replies
2
Views
2K
An infrared light that makes a stamp on a the hand visible
Dec 22, 2010
Replies
2
Views
5K
What does polarization really mean?
Dec 22, 2010
Replies
2
Views
10K
How Does Light Interact with a Slit in Single Slit Diffraction?
Dec 21, 2010
Replies
10
Views
4K
Buying a Laser Pointer: What Can It Do?
Dec 19, 2010
Replies
16
Views
8K
Descartes, lunar eclipses, and the speed of light
Dec 18, 2010
Replies
1
Views
3K
Single slit, optics, special case
Dec 17, 2010
Replies
6
Views
3K
Minimizing inter-photon distance in a non-coherent light interfer. experiment-
Dec 16, 2010
Replies
4
Views
2K
Spherical Huygens Waves and Diffraction: Why Does the Situation Look Different?
Dec 16, 2010
Replies
1
Views
2K
Phase velocity: Using the real or modulus of complex index of refraction?
Dec 16, 2010
Replies
2
Views
2K
Does the Mirror Equation Apply to Parabolic Mirrors?
Dec 15, 2010
Replies
3
Views
7K
Unexploited Photons: What Happens to Solar Energy?
Dec 15, 2010
Replies
2
Views
2K
Capturing the speed of sound and speed of light on video.
Dec 15, 2010
Replies
4
Views
5K
If I know the Solar Hour Angle at sunrise, can I calculate twilight by simply -
Dec 13, 2010
Replies
3
Views
7K
Construstive Interference of Waves. Why don't They cancel Out?
Dec 12, 2010
Replies
2
Views
2K
The optics of circular polarizers in photography
Dec 12, 2010
Replies
9
Views
5K
Light absorption and reflection
Dec 12, 2010
Replies
1
Views
3K
What Determines the Physical Size of a Radio Wave's Amplitude?
Dec 11, 2010
Replies
1
Views
5K
How Does Rotating a Polarizing Filter Affect Sky Photography?
Dec 10, 2010
Replies
18
Views
14K
Creating Plasma with Lasers: Can It Be Done?
Dec 10, 2010
Replies
2
Views
2K
Calculation of diffraction picture (partially coherent illumination)
Dec 9, 2010
Replies
6
Views
5K
Can We Measure the Speed of Light in Different Materials?
Dec 9, 2010
Replies
11
Views
3K
Cause of Lightning - Understand How It Happens
Dec 9, 2010
Replies
2
Views
2K
How do scientists control the intensity of fluorescent lights?
Dec 8, 2010
Replies
1
Views
3K
Atmospheric Scattering: Why We See Sunsets Red/Orange/Yellow
Dec 8, 2010
Replies
9
Views
9K
What Causes Ball Lightning and How Does It Work?
Dec 8, 2010
Replies
29
Views
5K
Question about interference/slits/lasers
Dec 7, 2010
Replies
9
Views
3K
Help understanding Refractive Index
Dec 7, 2010
Replies
3
Views
3K
How to represent light as a sinusoidal function
Dec 6, 2010
Replies
1
Views
3K
Build a Homemade Diffraction Grating - Ideas & Buying Guide
Dec 5, 2010
Replies
2
Views
4K
Lightspeed fast, then slowed, then fast again.
Dec 5, 2010
Replies
3
Views
5K
Why Does the Sky Appear Red at Sunrise/Sunset?
Dec 3, 2010
Replies
4
Views
2K
Optical Illusion of Water on Pavement
Dec 3, 2010
Replies
8
Views
7K
Reflections in Transmission lines
Dec 3, 2010
Replies
5
Views
11K
Double Slit Experiment on Refracted light?
Dec 1, 2010
Replies
1
Views
4K
How does light reflect off a moving angled mirror?
Nov 30, 2010
Replies
3
Views
5K
Why Does Single-Slit Diffraction Create a Pattern of Maxima and Minima?
Nov 30, 2010
Replies
3
Views
4K
Has the speed of light remained constant throughout history?
Nov 28, 2010
Replies
8
Views
3K
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