Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
1–10 of 77 posts
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#2FT Alphaville: High frequency trading
Skywave Networks accuses Wall Street titans of ‘continuous racketeering and conspiracy’
FT/Alphaville is blog attached to The Financial Times newspaper. It free to sign-up for an account.
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#3Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#4why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#5why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Speed of light in an optical fibre is about 2/3 that of the speed in air
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#6why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
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Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#7why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Radio waves travel at nearly the speed of light, whereas light in an fiber optic cable travels at ~67% of the speed of light due to the refractive index of glass.
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#8why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Light doesn’t go at light speed through optical fiber.
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#9why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Radio waves travel at nearly the speed of light, whereas light in an fiber optic cable travels at ~67% of the speed of light due to the refractive index of glass.
Ericsson blog wrote:
In a vacuum, electro-magnetic waves travel at a speed of 3.336 microseconds (μs) per kilometer (km). Through the air, that speed is a tiny fraction slower, clocking in at 3.337 μs per km, while through a fiber-optic cable it takes 4.937 μs to travel one kilometer – this means that microwave transport is actually 48% faster than fiber-optic, all other things being equal.
Re: Jump Trading, Virtu and the 'hidden optical fibre cable' under an Ohio field
#10why would a radiowave that is reflected off the atmosphere (and therefore taking the longer route) be faster than a direct fibre cable?
Light doesn’t go at light speed through optical fiber.
By definition, it does, because the maximum speed is qualified by "the speed of light in a vacuum", so the speed of light [in other media] is simply a function of how much the medium slows it down, yet it is still the speed of light. Funny how that works!