Recent comments in /f/space

SeriousPuppet OP t1_j5q1u31 wrote

Reply to comment by [deleted] in When will we become nearly all-knowing? by SeriousPuppet

Yes I would like to know if we will be able to manipulate space, and to what degree. For example, will we (humans enabled with AI) be able to create new stars, or completely harness the energy of stars. I'm wondering what is actually possible as humans and AI grow into the future.

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DonaldFauntelroyDuck t1_j5q1p39 wrote

Reply to comment by Adeldor in Do you think we will ever be able to communicate faster than the speed of light using entangled particles? by DefenderOfTheButter

I prefer hope and dreams that if you get a little foot in the door of physics you may bust it open some day. No argument from me that there is a long way to go and propably regulariy in the wrong direction. I am however also sure that we have enough glimpses seen that einstein is not the last of it.

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rustle_branch t1_j5pxkgl wrote

Reply to comment by [deleted] in Galileo High Accuracy Service (HAS) is now available! Galileo HAS increases the accuracy of Galileo to sub-meter levels. It will strengthen sectors where precise navigation is key, like agriculture or drones, also boosting innovation. by EU4Space

Any idea how accurate it was at the time? Its been several years since i did anything with gps so im pretty rusty, appreciate the clarifications

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rustle_branch t1_j5pwym0 wrote

Reply to comment by [deleted] in Galileo High Accuracy Service (HAS) is now available! Galileo HAS increases the accuracy of Galileo to sub-meter levels. It will strengthen sectors where precise navigation is key, like agriculture or drones, also boosting innovation. by EU4Space

Youre right, but i already felt i was too in the weeds for a reddit comment lol

Point is, until SA was turned off even with DC high precision wasnt possible (to my knowledge, at least - i know my gps professor had spent some time trying to find workarounds to SA but didnt get much success before it became moot)

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rustle_branch t1_j5pvshx wrote

Reply to comment by [deleted] in Galileo High Accuracy Service (HAS) is now available! Galileo HAS increases the accuracy of Galileo to sub-meter levels. It will strengthen sectors where precise navigation is key, like agriculture or drones, also boosting innovation. by EU4Space

Selective Availability was the intentional degradation of the civilian C/A code. This was turned off in 2000 by executive order - civilian receivers have been capable of sub-meter precision since

There is a second encrypted "p code" reserved for the military on a different frequency - this allows for even greater precision (not sure how much greater) because you can use the two signals at different frequencies to "cancel out" ionospheric errors. But there are other ways to handle ionospheric errors, depending on the application

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GATORSEMENSLURPER t1_j5pveyu wrote

Reply to comment by [deleted] in Galileo High Accuracy Service (HAS) is now available! Galileo HAS increases the accuracy of Galileo to sub-meter levels. It will strengthen sectors where precise navigation is key, like agriculture or drones, also boosting innovation. by EU4Space

NAVSTAR (GPS) is the USA’s GNSS constellation. Galileo is the EU’s. Previously GPS signals were deprecated which was called “selective availability.” Since 2000, full GPS signals are available to the public. What matters is the receiver and what frequencies it can receive, not the signals themselves.

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itryanddogood t1_j5pq5n3 wrote

Reply to Galileo High Accuracy Service (HAS) is now available! Galileo HAS increases the accuracy of Galileo to sub-meter levels. It will strengthen sectors where precise navigation is key, like agriculture or drones, also boosting innovation. by EU4Space

Back in the day GPS use to get an accuracy of 10 meters, then it dropped to about 2m and now this new one is down to 25cm in perfect conditions. Kewl!

GPS3 satellites are also being launched by the USA which are also more accurate and less susceptible to jamming. Those GPS guided ordnance won't miss now.

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