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Optics question - eyes and cameras, and the mythical 50mm lens
Aug 1, 2010
Replies
35
Views
10K
Speed inorder to shift green light to blue light?
Aug 1, 2010
Replies
4
Views
6K
Photon Annihilation, where does the energy go?
Jul 31, 2010
Replies
11
Views
5K
Are photons much older than stars?
Jul 30, 2010
Replies
15
Views
3K
Why is light not visible when it travels.
Jul 28, 2010
Replies
8
Views
3K
Slowing Light Down to Photograhable Speeds?
Jul 28, 2010
Replies
5
Views
3K
What Causes Diffraction According to Huygen's Principle?
Jul 28, 2010
Replies
10
Views
3K
Laser Cutting Machines: What Cuts Steel?
Jul 28, 2010
Replies
3
Views
2K
Increase Speed of Homopolar Motor - Advice & Explanation Needed
Jul 27, 2010
Replies
1
Views
3K
Fresnel Lens Array - Focal Point Question
Jul 27, 2010
Replies
1
Views
4K
Converting Transmission to Absorbance (Optics)
Jul 27, 2010
Replies
1
Views
11K
Can the Speed of Light be Greater than c?
Jul 27, 2010
Replies
7
Views
2K
What happens to polarised light?
Jul 26, 2010
Replies
4
Views
5K
Could gravity have 2 components like a photon
Jul 25, 2010
Replies
3
Views
2K
Refractive index and dispersion (name & usage of eq and conceptual questions)
Jul 25, 2010
Replies
1
Views
5K
Questions regarding light and dark
Jul 24, 2010
Replies
5
Views
2K
Polarising Sound: Restricting to One Direction Underwater
Jul 24, 2010
Replies
3
Views
2K
Just want to see if my understanding of the photon is correct
Jul 23, 2010
Replies
12
Views
3K
Understanding Wave Motion of Light: A Curious Question
Jul 21, 2010
Replies
6
Views
2K
Infinite Reflections: Explaining Mirror Physics
Jul 21, 2010
Replies
1
Views
2K
Destructive interference and Conservation of energy
Jul 21, 2010
Replies
10
Views
6K
Gamma/Radio waves through solids
Jul 21, 2010
Replies
7
Views
4K
Accuracy of Kirchhoff diffraction theory
Jul 20, 2010
Replies
6
Views
5K
White Light Scanning: How Does it Work?
Jul 20, 2010
Replies
0
Views
2K
Electron Interference: Scanning Electron Microscope
Jul 18, 2010
Replies
4
Views
2K
Why is the speed of light in a vacuum considered the ultimate limit?
Jul 16, 2010
Replies
3
Views
2K
Speed of light through moving liquid
Jul 15, 2010
Replies
16
Views
7K
Do photons cause electrons to accelerate in an atomic orbital?
Jul 14, 2010
Replies
10
Views
4K
How Can Spacecraft Travel Faster Than Light?
Jul 14, 2010
Replies
9
Views
3K
Can Refraction and Interference Both Cause Iridescent Effects?
Jul 14, 2010
Replies
1
Views
3K
A thought experiment: Light in a mirrored box?
Jul 13, 2010
Replies
18
Views
24K
Interference Pattern Properties
Jul 13, 2010
Replies
16
Views
5K
Does White Light Exist? (And two possible explanations for black lines)
Jul 11, 2010
Replies
4
Views
4K
Light at Absolute Zero: Answers to Your Questions
Jul 11, 2010
Replies
3
Views
3K
Compact fluorescent light bulb in microwave
Jul 11, 2010
Replies
12
Views
6K
How do we know that light is a wave
Jul 10, 2010
Replies
6
Views
5K
Safe Fluid Flow in Modified Microwaves: How to Protect Yourself?
Jul 9, 2010
Replies
1
Views
2K
Light Absorption Mechanism: Electrons, IR, UV Heating
Jul 9, 2010
Replies
4
Views
5K
The Mystery of Light in a Box: Where Does It Go?
Jul 8, 2010
Replies
7
Views
3K
Understanding Light in a Sheet of Glass
Jul 8, 2010
Replies
5
Views
4K
Fresh water and contact lenses
Jul 8, 2010
Replies
5
Views
5K
Question: Can Sound Waves Produce Light?
Jul 7, 2010
Replies
4
Views
5K
What determines the refractive index of a material?
Jul 7, 2010
Replies
2
Views
6K
Does Light Experience Time Differently Than We Do?
Jul 6, 2010
Replies
6
Views
5K
Where to buy cheap plastic lenses?
Jul 6, 2010
Replies
5
Views
4K
Understanding Light Scattering: The Role of Nitrogen Molecules
Jul 6, 2010
Replies
6
Views
4K
Question about refractive index and momentum
Jul 6, 2010
Replies
17
Views
5K
Can Humans Ever See Beyond the Visible Light Spectrum?
Jul 5, 2010
Replies
10
Views
3K
Why do red light waves bend less when passing through a prism?
Jul 3, 2010
Replies
11
Views
13K
Why photons can't afford more than light speed ?
Jul 1, 2010
Replies
5
Views
2K
Intensity of light vs amplitude
Jun 30, 2010
Replies
7
Views
14K
Does light have a frequency limit?
Jun 30, 2010
Replies
34
Views
17K
Rainbows and refraction of light
Jun 29, 2010
Replies
24
Views
11K
If light does not experience time, why does it take time to get here?
Jun 29, 2010
Replies
16
Views
15K
What Happens When a Photon Collides with a Proton in Glass?
Jun 28, 2010
Replies
3
Views
3K
What Affects the Energy of a Photon?
Jun 27, 2010
Replies
5
Views
3K
Photons Debate: Is There an Authentic Special Case?
Jun 27, 2010
Replies
46
Views
7K
Why Can't We See Our Face in Newspapers & Walls?
Jun 27, 2010
Replies
2
Views
2K
Likelihood of light being absorbed/re-emitted in 50 light years
Jun 26, 2010
Replies
5
Views
4K
What Would Happen if a Photon Was Caught Between Two Colliding Black Holes?
Jun 26, 2010
Replies
4
Views
3K
Why do certain objects reflect certain colors and not others?
Jun 26, 2010
Replies
9
Views
3K
The medium that light travels through is the EM field
Jun 24, 2010
Replies
4
Views
2K
Light Wave/Particle: Newton vs. Hooks
Jun 23, 2010
Replies
1
Views
2K
What is the Intensity of Light from a Cylindrical Source?
Jun 21, 2010
Replies
16
Views
5K
What units does incident light have in UV spectroscopy
Jun 19, 2010
Replies
8
Views
4K
Fluid mechanics : Barometer - slight confusion.
Jun 18, 2010
Replies
7
Views
4K
Why Does the Sky Look Blue? Rayleigh Scattering
Jun 14, 2010
Replies
6
Views
4K
Can a highspeed camera show a laserbeam moving?
Jun 12, 2010
Replies
22
Views
4K
Does a photon experience time?
Jun 10, 2010
Replies
21
Views
6K
Mixing Light: Red+Green=Yellow? QED, Superposition & Photons
Jun 10, 2010
Replies
2
Views
2K
Circular polarization through a linear polarizer
Jun 8, 2010
Replies
1
Views
5K
Can 3-D Interference Patterns Exist in Real Life?
Jun 8, 2010
Replies
1
Views
4K
Is blue shift a potential problem for near light speed travel?
Jun 7, 2010
Replies
4
Views
8K
Interference pattern with some fringes missing
Jun 7, 2010
Replies
3
Views
4K
E-field of a laser pulse and Intensity
Jun 6, 2010
Replies
1
Views
2K
Why Doesn't My Homemade Nitrogen Tube Light Up in the Microwave?
Jun 4, 2010
Replies
3
Views
2K
Light: Speed and Sight Dilemma
Jun 3, 2010
Replies
3
Views
2K
One has to wonder about photon interaction, and when to think of them
Jun 2, 2010
Replies
3
Views
2K
Travel back in time, with the help of light?
Jun 2, 2010
Replies
7
Views
3K
About light interacting with matter
Jun 1, 2010
Replies
8
Views
3K
First order fringes being reflected back to the 0 order
Jun 1, 2010
Replies
3
Views
2K
Fiber Optic Illumination System Research: Calculating Power & Length
Jun 1, 2010
Replies
2
Views
2K
What Causes Electrons to Emit Both Waves and Particles?
Jun 1, 2010
Replies
15
Views
3K
Other Special Speeds? (than light)
Jun 1, 2010
Replies
21
Views
4K
What does a light 'filter' do?
May 31, 2010
Replies
3
Views
9K
Single slit diffraction minima formula misunderstanding
May 31, 2010
Replies
2
Views
5K
How long can a light ray travel
May 30, 2010
Replies
4
Views
8K
Radio Waves & Interaction with Matter
May 30, 2010
Replies
2
Views
3K
Near ballistic light/photon interference
May 29, 2010
Replies
4
Views
2K
Optics: Soap Film and Other Things
May 28, 2010
Replies
6
Views
2K
Light seems to bend around objects but why?
May 28, 2010
Replies
19
Views
13K
Destructive Interference and the Conservation of Energy
May 25, 2010
Replies
6
Views
6K
Wavefront Simulation using Geometry Optics and Physical Optics
May 25, 2010
Replies
1
Views
4K
Light Speed in Atmosphere: Does It Regain Energy? | Explained
May 24, 2010
Replies
11
Views
3K
Why Does Time Seem to Slow Down in High-Stress Situations?
May 24, 2010
Replies
9
Views
5K
Is Light a Wave or a Series of Pulses?
May 23, 2010
Replies
12
Views
4K
Can Adding a Lens to a Small Solar Dish Increase Its Heat Output?
May 23, 2010
Replies
3
Views
2K
What Happens to Starlight When Traveling Faster Than Light?
May 23, 2010
Replies
9
Views
4K
Visibility of IR light from remote controls
May 22, 2010
Replies
2
Views
2K
Comparing Atomic Gas and Semiconductor Lasers
May 22, 2010
Replies
4
Views
2K
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