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Graduate Can Light Radiation Really Convert into Matter?

  • p-brane
  • · Replies 31 ·
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Undergrad Why is the speed of light constant?

  • picass
  • · Replies 132 ·
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Undergrad How far does a red laser beam travel in a mirrored box after 10 seconds?

  • whitelighter
  • · Replies 10 ·
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Graduate Photons are clocks and SR says they shouldn't tick

  • StarThrower
  • · Replies 9 ·
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9

Graduate SR and one-way speed of light tests

  • wisp
  • · Replies 100 ·
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Undergrad Can the expansion of space exceed the speed of light?

  • What Do I Know?
  • · Replies 11 ·
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11

Graduate What Happens to Headlights on a Spaceship Traveling at Light Speed?

  • Kyle3825
  • · Replies 12 ·
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High School Infared light - lenses and ink

  • derekbeau
  • · Replies 2 ·
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Graduate Do sound and light have anything in common?

  • billy_boy_999
  • · Replies 6 ·
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6

Undergrad Energy = mass * c^2 where c=speed of light

  • expscv
  • · Replies 32 ·
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Undergrad Diffraction limit on resolution on camera lens

  • lovelylm1980
  • · Replies 7 ·
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7

Graduate Redshift Mechanisms and Supernova Lightcurves

  • Thomas2
  • · Replies 9 ·
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9

High School Effect of Partial Covering on Lenses and Mirrors

  • Chen
  • · Replies 6 ·
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6

High School Where can I find resources to grasp lens reflections?

  • Kacper
  • · Replies 2 ·
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2

High School Minimal Interference from Buildings and Houses on Broadcast Reception

  • islandguy
  • · Replies 1 ·
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Undergrad Diffraction grating of white light

  • lovelylm1980
  • · Replies 2 ·
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2

Undergrad How do microwave ovens ACTUALLY work?

  • sazzles
  • · Replies 3 ·
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3

Undergrad How Far Can a Photon Travel in Our Atmosphere?

  • jimma
  • · Replies 5 ·
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5

Undergrad Resolving golf ball flight forces into components to find acceleration

  • Paul7
  • · Replies 43 ·
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Graduate Laser in underwater lidar application?

  • vani
  • · Replies 3 ·
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3

Laser Theory Tutorials: Find an Excellent Site

  • nbann5000
  • · Replies 2 ·
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2

Graduate Phase shift in the Michelson-Morley experiment

  • hellfire
  • · Replies 18 ·
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18

High School Light Refraction: How it Colors Our Sky

  • Soaring Crane
  • · Replies 3 ·
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3

Undergrad Why can bees fly when planes with the same wing design cannot?

  • KingNothing
  • · Replies 9 ·
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9

Undergrad Crest and Trough of a light wave

  • neurocomp2003
  • · Replies 3 ·
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3

Graduate Is My Understanding of Underwater Vision Flawed?

  • SamLuc
  • · Replies 29 ·
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29

Graduate Donut approaching the speed of light

  • Namloh2000
  • · Replies 1 ·
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1

Graduate Why can't we perceive light faster than c with Einstein's velocity addition formula?

  • KingNothing
  • · Replies 1 ·
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1

High School Why doesn't mirror reflection change light color if the Compton effect is involved?

  • wolverine
  • · Replies 8 ·
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8

High School Can you see light traveling through space with a telescope?

  • AnthreX
  • · Replies 6 ·
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6

Graduate Could gravity be the reaction force from photon emission?

  • AWolf
  • · Replies 20 ·
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20

High School Lift and drag formulas for glider planes including air resistance

  • Inspector Gadget
  • · Replies 2 ·
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2

Graduate Can a spinning photon model explain wave and particle behavior?

  • Owen
  • · Replies 26 ·
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26

High School What has both magnitude and direction?

  • XtinaVoiceWithin
  • · Replies 10 ·
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10

Manufacturing compact pulsed microlaser source in blue/green

  • vani
  • · Replies 1 ·
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1

Undergrad Would Traveling at the Speed of Light Freeze Time for Everyone Else?

  • AnthreX
  • · Replies 15 ·
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15

Graduate Even more light, a second kind.

  • Andre
  • · Replies 2 ·
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2

Undergrad Can a Bubble Increase Radio Wave Refraction Effectively?

  • loom91
  • · Replies 3 ·
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3

Graduate Total energy through a Young experiment

  • quartodeciman
  • · Replies 2 ·
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Undergrad Why do light rays bend towards the center after exiting a convex lens?

  • sk381
  • · Replies 6 ·
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6

Undergrad Is the U228 Electron Really Faster Than the Speed of Light?

  • Tom McCurdy
  • · Replies 10 ·
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10

High School Does the human eye have limitations on detecting black surfaces?

  • alchemist
  • · Replies 8 ·
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8

Graduate Why Does Light Experience Time Differently Than Objects with Mass?

  • ClarkKivette
  • · Replies 8 ·
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8

High School Why is a rainbow curved and how does it appear from an airplane?

  • venkat
  • · Replies 3 ·
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3

Graduate What became of light has slowed theory?

  • fbsthreads
  • · Replies 2 ·
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2

High School What Determines the Color of a Pigment?

  • aychamo
  • · Replies 4 ·
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Graduate Particle / wave duality on a scale of light frequencies.

  • Michael F. Dmitriyev
  • · Replies 194 ·
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Undergrad Has a Light Plane sensor been invented?

  • NickC
  • · Replies 3 ·
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3

Undergrad Rotational velocity and the speed of light

  • brum
  • · Replies 13 ·
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13

Graduate The energy and the faster-than-light motion of the quasar

  • Zhang Xu
  • · Replies 1 ·
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Variable speed of light and faster-than-light communication

  • Mattius_
  • · Replies 54 ·
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Undergrad Light as a trapped electromagnetic wave packet

  • taylordnz
  • · Replies 4 ·
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4

Undergrad Weight of light and Gravity Speed

  • Guard
  • · Replies 3 ·
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3

Undergrad Does light have mass in wave or quanta form?

  • FUNKER
  • · Replies 53 ·
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Undergrad Distance measurement with laser

  • Cliff_J
  • · Replies 3 ·
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3

High School Interference of Light: Perpendicular Beams

  • Gara
  • · Replies 4 ·
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4

Undergrad What is the wavelength of a radio wave photon?

  • jimmy p
  • · Replies 10 ·
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10

Undergrad Can We Reach the Speed of Light?

  • Stringyguy0788
  • · Replies 11 ·
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Graduate Does light have mass and is the speed of light constant?

  • simon
  • · Replies 18 ·
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18

Undergrad How can you see light that is traveling away from the observer?

  • simon
  • · Replies 42 ·
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Undergrad Double start - characteristic frequencies of the light

  • mmfoley
  • · Replies 2 ·
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2

Undergrad Can You Build a Michelson Interferometer on a Budget?

  • Hyperreality
  • · Replies 1 ·
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Undergrad Prism experiments with white card to observe light separation

  • 8LPF16
  • · Replies 1 ·
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1

Black and White Mirror / Narrow Band Mirror

  • bugguy
  • · Replies 2 ·
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Undergrad Answer Light Theory Question: Why Reduced Magnification Underwater?

  • vg19
  • · Replies 3 ·
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3

High School What is a photon and how can it be massless?

  • Gale
  • · Replies 3 ·
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3

Undergrad How do moving charges generate electromagnetic waves?

  • Quattro
  • · Replies 2 ·
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Undergrad Optics, concerning a thin film

  • Silverious
  • · Replies 4 ·
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4

Undergrad What Determines Light Intensity?

  • one_raven
  • · Replies 27 ·
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High School Are mirages caused by refraction or reflection?

  • Andre
  • · Replies 23 ·
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Undergrad Does the inverse square law apply to laser or coherent light?

  • Glenn
  • · Replies 6 ·
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6

High School Build a laser capable of cuting intricate designs out of thin metal

  • wolram
  • · Replies 16 ·
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16

High School Can light be a medium for sound?

  • ARandomNoun
  • · Replies 7 ·
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7

Graduate Can a mass-energy powered ship accelerate past the speed of light?

  • rtharbaugh1
  • · Replies 22 ·
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High School Why don't plants absorb green light to maximize energy?

  • luther_paul
  • · Replies 13 ·
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13

High School Why isn't pink in the visible spectrum between blue and red?

  • Gara
  • · Replies 8 ·
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8

Graduate Why Can't Massive Objects Travel at the Speed of Light While Massless Ones Can?

  • tenzin
  • · Replies 3 ·
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3

High School Why is glass transparent?

  • jimmy p
  • · Replies 9 ·
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9

High School How would you describe what a photon is?

  • Monkeymia
  • · Replies 4 ·
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4

Undergrad What is the ideal wavelength for propagation in optic fibres?

  • Neural
  • · Replies 8 ·
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8

Undergrad What is Light? Is it a EM wave or a stream of photons?

  • think
  • · Replies 12 ·
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12

Graduate Photon Radius: Does Photon Have Energy Boundaries?

  • ranyart
  • · Replies 5 ·
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5

Undergrad Can a laser gun measure speed accurately on a 6% incline?

  • klausbellinghausen
  • · Replies 8 ·
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Graduate How do we know physical constants aren't slowly changing?

  • phoenixthoth
  • · Replies 4 ·
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4

Graduate How does a photon experience time at light speed?

  • Tachyon son
  • · Replies 3 ·
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Graduate Constant limit c restricts photons to radial observation

  • Loren Booda
  • · Replies 11 ·
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High School The speed of sound and The speed of Light

  • timejim
  • · Replies 4 ·
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Undergrad Optics Q: Estimating Color in White Light from UV?

  • NeutronStar
  • · Replies 5 ·
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Graduate Generating of light/energy from the dissassemblement of molecular bonds

  • wunderkind
  • · Replies 4 ·
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4

Graduate Can Light Travel Through Dimensions Without Motion?

  • terwilligerjones
  • · Replies 12 ·
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Undergrad The Speed of Light: A Constant Mystery

  • benzun_1999
  • · Replies 20 ·
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20

Parllel universe have diffrent speed of light

  • netcrazy
  • · Replies 1 ·
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High School Information on mirages and mirages pictures

  • vaastav
  • · Replies 2 ·
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Undergrad How to read and create dispersion diagrams

  • savedadogs
  • · Replies 1 ·
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Graduate Propagation of Single Photon - Richard's Question

  • rtharbaugh1
  • · Replies 6 ·
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6

Graduate What about objects already traveling at the speed of light?

  • FUNKER
  • · Replies 6 ·
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Graduate Does light travel or propagate force disturbances?

  • Kanelous
  • · Replies 13 ·
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Graduate How does moonlight reach Earth at such a small angle without reflection?

  • Nacho
  • · Replies 19 ·
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High School Why are UV photons absorbed by glass?

  • mark2711
  • · Replies 2 ·
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Undergrad Find the final percentage of light exiting the last polizer

  • matrix_204
  • · Replies 1 ·
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1