As an owner of the complete History of Middle Earth series, these books are not for the casual fan, or probably even the average fan. They really are more designed for Tolkien scholars, and anyone picking up The Nature of Middle Earth expecting ripping yarns filled with Hobbits and wizards is going to be very disappointed.
Part of the reason they are acting so carefully is that they do not have a ground-based analog of the voyager craft to test with, according to what I read a while back.
If you read the fine article you'll get answers to all your questions. It's an interesting story.
Yes some of the onboard memory is faulty.
Nope it doesn't work that way. Practical engineering did a fantastic video on this subject recently. Everyone interested in the topic of solar and wind on the grid needs to watch that. https://www.youtube.com/watch?...
The problem is that inverters need a stable grid to synchronize to when feeding power back to the grid. They cannot help stabilize the grid like base-load generators do. There are research groups working on developing more advanced inverters that can simulate a generator's inertia. But it's going to require a much smarter grid to enable solar to contribute to grid stability when demand starts pulling the frequency down. By the way the same issues exist with battery storage too, so the problems with inverters will have to be addressed before fossil-fuel base-load plants can just be shut down. We will get there but it's going to take a lot longer than you think.
Grady from Practical Engineering recently posted a good video on the challenges of hooking solar to the grid:
Thank you for balancing the parentheses. Cosmic order has been restored.
Problem is, do you want security handled by a bunch of companies where expertise and communications gaps become massive liabilities? Then, when there are failures, fingers will get pointed all around the world, nobody will take responsibility and mistakes will be perpetuated because nobody was accountable,, til the next crisis. Yes, we have some of that now under MS, but using a patchwork o companies, it would be much worse.
No it really did crash. Rotors impacted the sand. One blade is several meters away and there are marks on the sand where the impact occurred.
Perseverance is now too far away to relay the data. Ingenuity does not have the capability of talking directly to the satellite or to earth.
What an amazing little machine. Having flown my share of RC aircraft, I'm amazed that it flew for so long before it finally crashed. This is the kind of NASA engineering that we have found so awesome over the years.
I listened to a fascinating interview with one of the project leads and he revealed that Ingenuity runs Ubuntu and they actually had the ability to get a actual remote shell through Perseverance. They used this shell on a couple of occasions to modify the script that used ffmpeg to create video files from the still images, among other tasks. Pretty interesting stuff.
Has to be the coolest use of Linux to date. And the fact that open source software such as ffmpeg is running on a computer on another planet.
The answer is that this is somewhat misleading; there are plenty of Z80 compatible chips still being manufactured. The TI-84 uses the eZ80, which is four times faster and will still be around. There are also many (many) clones that are closer to cycle-exact.
Ahh the memories. I remember administering those systems back in the day. They were all pretty nice compared to the state of Windows at the time. But they certainly were idiosyncratic. In the early 2000s I finally migrated all of our unix labs at the Computer Science department at Uni to Linux from those systems. Was pretty amazing that a $1500 PC with Linux could do everything those $10k and $15k workstations were doing. Was a bit sad when our old HPUX NFS file server went out the door. But the Linux monster that replaced it was pretty amazing.
Do you have a lot of clients running those old unix systems? Are HPUX and AIX still being sold?
Yes life was pretty good on the Intel Macs. User-upgradeable RAM, SSDs that could be replaced and upgraded. Tis not so now.
I'm not necessarily going to defend this protest, but criticism of Israel is hardly some "woke Commie" position (whatever the hell that even means). One can sincerely believe Israel's actions against Palestinians is unjust, without, say, wanting state control of the economy.
Yes on the Intel series it was pretty easy. On the M series iMacs? Not possible.
The hardest part of climbing the ladder of success is getting through the crowd at the bottom.
