"Even Earth’s atmosphere interferes with optical communications. Clouds and mist can interrupt a laser. A solution to this is building multiple ground stations, which are telescopes on Earth that receive infrared waves. If it’s cloudy at one station, the waves can be redirected to a different ground station. With more ground stations, the network can be more flexible during bad weather. SCaN is also investigating multiple approaches, like Delay/Disruption Tolerant Networking and satellite arrays to help deal with challenges derived from atmospheric means."
Seems like reusing some of Star Wars research could be used as well where the beam is constantly adjusted with independent mirrors to keep the beam coherent through the atmosphere. Also learned was the beam itself starts to distort the atmosphere requiring even more adjustments.
Wouldn't the angle of the offset matter? It seems like it would make scattering worse to be off-axis by too far.
Which then also means you have to build ground stations in this range yet far enough apart that they experience different weather yet close enough that you can redundantly link all the sites.
Aside from government and massive telecommunications companies who would this serve?
It's just really cool sci-fi tech that I want to see used in something other than DLP chips!
JWST and other observatories with segmented primary mirrors kind of use the segment alignment one time to get the correct alignment once. Then there is Adaptive Optics. It's kind of the opposite direction though as they are using a laser to detect the distortion so it can be compensated in the image. From learning about SDI when I was a kid/teen, it's just always been about controlling the laser itself in my mind.
The JWST does not have to deal with atmosphere or weather and uses a giant sun shield to keep the internal temperature stable so these alignments have the longevity you need to make the platform work.
>the beam itself starts to distort the atmosphere requiring even more adjustments.
may be something like this - a high-power impulse making a channel through whatever clouds, mist, dust and after that information carrying ray/impulse through the channel, rinse and repeat
That 6 Tbps optical link is the max per MEO satellite and they are only planning 128 of those. I imagine the end users of that are pretty much only backhaul customers, individual households/businesses would still need RF or wireline service.
Germany is your problem. If you’re open to looking outside Germany, there are many options. You can open a U.K. company same day, an Estonian company with e-residency in a couple of days. Germany is uniquely nightmarish.
The problem isn’t incorporation - it’s having accountants in your jurisdiction familiar with the structure. You can incorporate in the UK for £50 instantly but you might have trouble finding an accountant in Italy that is willing to sort your accounts out.
>One characteristic of v4 is it's somewhat reasonable to do a straight forward block on a range of addresses to shut down access. This is still somewhat possible with v6, but harder as there's simply a much larger portion of ip addresses that can be all over the place. It's theoretically a lot easier for anyone that wants to bypass a simple filter to grab a new public IP address.
no its not, its easier to block IPv6 ranges than IPv4 ones.
if someone want be block my ISP, they only need a single /32 rule with v6.
Evenn though its onelayer down - the same tactics that were used to suspend/takeover domains would still apply , at the end of the day one still has to get the IPv4/IPv6 address from someone(who can be coerced).
When Trump pressures RIPE NCC or APNIC to deregister an IP address block, that's the end of the internet as we know it, and the return to national networks with very limited interconnection. Even Russia still has address registrations despite being sanctioned.
Alternatively they pressure USA ISPs to block the addresses. That's already regularly done but it probably won't be enough to satisfy the extortion industrial complex which is out for blood.
A quick look at the last few administrations is all anyone needs to see how this one interprets the powers and duties that come with the office.
One of my favorite phrases coined during the last Trump administration was something like, "not just wrong, but wrong beyond normal parameters." It basically meant exactly what we are discussing here; namely, being an outlier of some sort.
I specifically mentioned foreign policy. There, I don't remember a single US government that was not a net negative for the rest of the world (Israel excluded).
>ALL your services accessible through the tunnel are "down" for your users
Not all.
I operate site with IPv6 only origins behind cloudflare.
During the outage I manged to login to the dashboard after some time and remove cloudflare for nearly 2 hours, and traffic level stayed close to 50% during the IPv6 only period.
Nobody complained: those who did not have working IPv6 probably blamed it on cloudflare.
> traffic level stayed close to 50% during the IPv6 only period.
> Nobody complained: those who did not have working IPv6 probably blamed it on cloudflare.
You described a situation where the outage resulted in 50% of your customers were unable to reach you and you were unable to do anything about it. I don’t think this story is a win for IPv6, regardless of whether your customers blame CloudFlare or not.
Would hand been 100% if his site supported ipv4 natively instead of relying on CloudFlare to do the translation.
The story here is not “ipv6 made my site resilient to CloudFlare outage”. It’s “50% of my customers can’t reach my site even when I turn off CloudFlare”.
"Even Earth’s atmosphere interferes with optical communications. Clouds and mist can interrupt a laser. A solution to this is building multiple ground stations, which are telescopes on Earth that receive infrared waves. If it’s cloudy at one station, the waves can be redirected to a different ground station. With more ground stations, the network can be more flexible during bad weather. SCaN is also investigating multiple approaches, like Delay/Disruption Tolerant Networking and satellite arrays to help deal with challenges derived from atmospheric means."
https://www.nasa.gov/technology/space-comms/optical-communic...
Some more info on Optical Communications for Satellites: https://www.kiss.caltech.edu/workshops/optcomm/presentations...
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