Findings:

• speed of light
• Why matter cannot reach the speed of light
• I've built a lot of blazing speed of light machines
• Everything moves through spacetime at the speed of light
• Achieving Light Speed - The Easy Way
• how to measure the speed of light
• Wombats in light speed experiments
• Shoot Speed Kill Light
• The speed of light vs. time travel
• Beam travels faster than speed of light
• How to transmit information faster than light speed
• How not to transmit information faster than light speed
• What is faster than the speed of light?
• Theory of Relativity for Dummies
• How to move something faster than the speed of light
• Light Speed
• light
• light bulb
• Industrial Light and Magic
• Blue light special
• Ray of Light
• Bud Light
• lower lights
• Remain in Light
• cure light wounds
• Light Rum
• black light
• Light-emitting resistors
• traffic light
• light pen
• Electric Light Orchestra
• light year
• Cerenkov light
• light at the end of the tunnel
• Light rail
• night light
• light pollution
• Virtual Light
• fluorescent light
• There are four lights
• Too Much Light Makes The Baby Go Blind
• Christmas lights
• Dr. Light
• Bude light
• Drummond light
• lights
• Are you in the light or in the dark?
• Gloranthan Fire/Sky/Light Cults
• Paradox by the Dashboard Light
• True At First Light
• Rising of the Lights
• By The Light Of The Silvery Moon
• Charge of the Light Brigade
• master of light (user)
• key light
• practical light
• back light
• Traffic lights that don't stay green long enough for everyone waiting to get through
• out like a light
• Lights Out
• Camel Lights
• Compact Fluorescent Light Bulb
• Light artillery
• Visionaries: Knights of the Magical Light
• Light My Fire
• light up
• Holiday Light Derby
• light meter
• Best Light
• red light
• yellow light
• green light
• ghost light
• clamp light
• embrace the light
• White Light/White Heat
• old chestnut: light switches
• answer: light switches
• light chaser
• light cycle
• sex lights
• We're all in the dark, just looking for the light
• idiot light
• light pipe
• When we have reached the end of time and light
• lights of arbitrary color
• spindly arms against a sea of light
• sweetness and light
• Into the light
• Light Anti-Tank Weapon
• Inching up at a red light
• Surah 24 Light
• traffic light parties
• Docklands Light Rail
• Circle of light
• Anchor light
• Toward his impossible light
• see the light
• The Light Princess
• The Light Princess: Chapter 1
• The Light Princess: Chapter 2
• The Light Princess: Chapter 3
• The Light Princess: Chapter 4
• The Light Princess: Chapter 5
• The Light Princess: Chapter 6
• The Light Princess: Chapter 7
• The Light Princess: Chapter 8
• The Light Princess: Chapter 10
• how to survive a vacuum metastability disaster
• The Light Princess: Chapter 14
• The Light Princess: Chapter 15
• I Like Traffic Lights
• cold light
• daytime running lights
• E2 Red Light District
• Is Chinese "Light" Soy Sauce The Same As Low In Salt?
• Traffic Light Gods
• red light, green light
• Sodium light interference
• light board
• Digital Light Blinker
• Children of the Light
• Ceremonies of Light and Dark
• Between the Darkness and the Light
• Put on the red light
• Red Light District
• Sleeping in Light
• Speculation: How a Lightsaber works
• LED tail lights
• Army of Light
• scroll of light
• wand of light
• Tripping the light fantastic
• Ugh, no lights. Make jerky!
• Phosphor reading by His own Light
• Orange street lights at the playground
• Ming I, darkening of the light
• emerald light
• white light
• strip light
• Travelling on a beam of light
• The green light at the end of Daisy's dock
• The day I woke up Faster Than Light
• Salt and Light
• Natural Light
• Tired light theory
• The Light of the Body
• Sex by candle light
• Child of the Light
• There Is a Light that Never Goes Out
• swimming toward a source of light
• electric light
• 3.. 6.. 9.. Seconds Of Light
• Dancing Lights in Kenora
• Your enthralling radiance lights the way for those less lucid than you
• Das Blinken Lights
• center brake light
• The Opposite of light
• light and sounds experiment
• pilot light switches
• Mekong Lights
• City Lights
• Lord of Light
• All that glitters is refracted light
• Guiding Light
• God Light
• Turning right on a red light
• The blue lights of suburban living rooms

If you Log in you could create a "speed of light in vacuum" node. If you don't already have an account, you can register here.