top | item 46888674 (no title) cmsj | 25 days ago Space doesn't really change it though because the effective bandwidth between nodes is reduced by the overall size of the network and how much data they need to relay between each other. discuss order hn newest kimixa|25 days ago Yup. We don't use fibre optics on earth rather than lasers because of some specific limitation of the earth's surface being in orbit would avoid.We use them because they're many orders of magnitude cheaper and simpler for anywhere near the same bandwidth for the distances required. abalone|25 days ago > We don't use fibre optics on earth rather than lasers because of some specific limitation of the earth's surface being in orbit would avoid.That's incorrect. Lasers can suffer from atmospheric interference and fogging on earth.Here is a post from NASA explaining why they like laser communications better than RF in space.[1][1] https://solc.gsfc.nasa.gov/modules/kidszone7/mainMenu_textOn...
kimixa|25 days ago Yup. We don't use fibre optics on earth rather than lasers because of some specific limitation of the earth's surface being in orbit would avoid.We use them because they're many orders of magnitude cheaper and simpler for anywhere near the same bandwidth for the distances required. abalone|25 days ago > We don't use fibre optics on earth rather than lasers because of some specific limitation of the earth's surface being in orbit would avoid.That's incorrect. Lasers can suffer from atmospheric interference and fogging on earth.Here is a post from NASA explaining why they like laser communications better than RF in space.[1][1] https://solc.gsfc.nasa.gov/modules/kidszone7/mainMenu_textOn...
abalone|25 days ago > We don't use fibre optics on earth rather than lasers because of some specific limitation of the earth's surface being in orbit would avoid.That's incorrect. Lasers can suffer from atmospheric interference and fogging on earth.Here is a post from NASA explaining why they like laser communications better than RF in space.[1][1] https://solc.gsfc.nasa.gov/modules/kidszone7/mainMenu_textOn...
kimixa|25 days ago
We use them because they're many orders of magnitude cheaper and simpler for anywhere near the same bandwidth for the distances required.
abalone|25 days ago
That's incorrect. Lasers can suffer from atmospheric interference and fogging on earth.
Here is a post from NASA explaining why they like laser communications better than RF in space.[1]
[1] https://solc.gsfc.nasa.gov/modules/kidszone7/mainMenu_textOn...