How fast is 0.66666666667779 times the speed of light?
It's about two-thirds as fast as The Speed of Light
The speed of The Speed of Light is about 1 times the speed of light.
(C) (in a vacuum)
The speed of light (and all other electromagnetic radiation) in a perfect vacuum is known as "c" and measures
299,792,458 m/s, per the formal definition of the meter. While visible light travels close to this speed in air, it slows to
0.666666666677790 times the speed of light when passing through the glass of a typical window.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000 times as fast as a bolt of Lightning
The speed of a bolt of Lightning is about 0.00033 times the speed of light.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to
0.00032 times the speed of light when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 5,000 times as fast as a Meteor
The speed of a Meteor is about 0.00014 times the speed of light.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 25,000 times as fast as The Space Shuttle
The speed of The Space Shuttle is about 0.000025830 times the speed of light.
(Orbiter vehicle velocity)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 200,000 times as fast as a Bullet (Rifle)
The speed of a Bullet (Rifle) is about 0.000003050 times the speed of light.
(5.56 x 45 mm, a.k.a. 5.56 NATO)
A 5.56 x 45 mm cartridge is fired at a velocity of
0.000003050 times the speed of light. As the NATO rifle cartridge, it is used by the military forces of more than thirty-one countries, including use in the M16 series, M4 Carbine, HK-416, and M249 Squad automatic weapons used by the United States armed forces.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 300,000 times as fast as a Jet Fighter
The speed of a Jet Fighter is about 0.00000220 times the speed of light.
(for Lockheed Martin F-16, a.k.a. Fighting Falcon, a.k.a. Viper) (maximum speed at altitude)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 500,000 times as fast as a Bullet (Handgun)
The speed of a Bullet (Handgun) is about 0.000001280 times the speed of light.
(for
.40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)
A
0.40 caliber Smith & Wesson bullet has a muzzle a velocity of
0.000001280 times the speed of light. This type of ammunition has been the standard issue round of the United States Federal Bureau of Investigation (FBI) since 1990.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 600,000 times as fast as The Speed of Sound
The speed of The Speed of Sound is about 0.000001140 times the speed of light.
(in dry air at 20°C)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as a Peregrine Falcon
The speed of a Peregrine Falcon is about 0.000000360 times the speed of light.
(a.k.a. Peregrine, a.k.a. Duck Hawk, Falco peregrinus)
The Peregrine Falcon can reach speeds of up to
0.000000360 times the speed of light when diving. Falcons are sometimes sent to scare smaller birds away from airports to improve air traffic safety and were used in World War II to intercept carrier pigeons used by enemy forces.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as The CRH (train)
The speed of The CRH (train) is about 0.000000320 times the speed of light.
(a.k.a. Hexie Hao, 和谐号, a.k.a. 和諧號, a.k.a. Héxié Hào, a.k.a. "Harmony")
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as a Porsche 911
The speed of a Porsche 911 is about 0.0000003050 times the speed of light.
(for Porsche 911 Type 997 GT2, 2007 model)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as a Lamborghini Gallardo
The speed of a Lamborghini Gallardo is about 0.000000300 times the speed of light.
(for Gallardo LP 550-2, a.k.a. Valentino Balboni, 2009 model)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as The TGV (train)
The speed of The TGV (train) is about 0.000000300 times the speed of light.
(Train à Grande Vitesse) (for SNCF TGV Réseau, a.k.a. "Network" model, a.k.a. TGV-R) (maximum speed)
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,000,000 times as fast as an Arrow (archery)
The speed of an Arrow (archery) is about 0.00000029910 times the speed of light.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
It's about 2,500,000 times as fast as a Helicopter
The speed of a Helicopter is about 0.0000002630 times the speed of light.
(for AH-64A Apache, a.k.a. Hughes Model 77) (maximum cruise speed)
The AH-64 helicopter, one of the primary helicopters used by the United States Army, flies at a top cruise speed of
0.0000002630 times the speed of light. The AH-64 is the primary military helicopter of several nations including the United States, the United Kingdom, Israel, Japan, and the Netherlands.
MLA Style (8th Ed.)
"0.66666666667779 times the speed of light" The Measure of Things, 2023, themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr. Accessed 30 Jan 2023.
APA Style (7th Ed.)
The Measure of Things. (2023). 0.66666666667779 times the speed of light. Retrieved January 30, 2023 from themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr
Chicago Style (17th Ed.)
"0.66666666667779 times the speed of light." The Measure of Things. 2023. https://themeasureofthings.com/results.php?comp=speed&unit=c&amt=0.66666666667779&p=1&sort=pr.
