I loved to go to the Hansen planetarium in Salt Lake City as a kid to learn about the night sky. I remember when they swapped out the star projector with the first digital projector made by Evans & Sutherland in the early '80s. The stars weren't as sharp as the old system, but getting to virtually travel to other stars in our galaxy and see the constellations change shape from those new vantage points was a real trip.
It might make sense for older larger vehicles that primarily move forward to have backup beepers. But every commercial oriented vehicle seems to have them now, including the smallest of dock loaders. These smaller vehicles have clear visibility in all directions but still put the burden of avoiding danger on everyone else instead of the vehicle operator. This is unreasonable and disturbs and annoys people at a large radius away. There is no excuse in this day and age to not build and retrofit commercial vehicles with obstacle avoidance systems and proximity sensors to replace backup beepers.
> It's good to be passionate, but blind devotion is dangerous
Agree with you there -- the data might be encrypted on Apple's servers but that doesn't mean Apple can't scan your data on your device and report the findings back to the mother ship. They've made it increasingly difficult to know or control what system processes do.
I would think yes, if you can accept the performance hit. Always have to be careful of what files you share between guest and host. Even browsing as another MacOS user would offer much isolation from your main account if you make your main files unreadable by the rest of the system.
You never had to use their IDE, and in fact the IDE didn't exist for the first 20 years or so. Being an interpretive language, no toolchain involved. You just write code in any editor and run the IDL interpreter, just as you do with perl or python. Code libraries were discovered via your IDL_PATH environment, similar to how perl and python work.
IDL is a much older established language dating back to the '70s. So GDL would appeal to anyone needing to run or develop IDL code but wishing to avoid paying the license fee.
Markor looks like a great way to view Zim files on android. Thanks for the tip! But it seems to access note files in the common filesystem space -- which for privacy reasons somewhat defeats why I prefer Zim over cloud-based solutions. Anyone know of a way to use something like Markor and syncthing in an isolated android sandbox? Currently I sftp notes into a termux environment and view/edit with vim, but Markor would be so much better.
I've been using and loving qalculate for years as part of Debian but strangely it isn't in the current Debian stable package list (bullseye). So I just switched to SpeedCrunch and it seems like a good replacement for most quick calculations where you still want to see some history.
They seem to support the current version and the previous two before that. So Mojave is not getting support, but Catalina is at this time. But be careful what you wish for -- the last Catalina security update broke software using openGL accelerated graphics for Apple computers with integrated Intel HD4000 graphics. This includes Google Earth, Google Street view, AutoDesk, RStudio and many web apps. So a lot of people have had to revert to older unsupported MacOS versions just to get any work done.
Why would the RTE of this salt solution be so much lower than the molten salts demonstrated in the DOE Solar Two project? According to the technical report at https://www.osti.gov/biblio/791898 they achieved round-trip energy storage efficiencies of 97%.
In many western cities, the air is heavily polluted with wood smoke. Walking around suburbs of Seattle I see many of the older homes emitting thick white woodsmoke from their chimneys. This is very bad for everyone's health. If it's not raining or windy, the air is bad most of the cooler days during the year. It seems absurd to me living in the very wet pacific northwest that more homes are not using renewable hydro power to efficiently warm their homes with heat pumps.
I'm happy to see California do this and hope other states wise up to the damage being done by these pollution machines. Drives me bonkers every week as neighbors and their landscapers fire up gas powered leaf blowers, edge trimmers and lawnmowers. Not only are they polluting the air and creating a noise nuisance, but for most yards they are using up a valuable energy resource for a task better suited for hand or electric tools. Think of how much more enjoyable yard work would be if you didn't have to listen to the deafening roar of everyone's internal combustion engines all the time. Rakes, push mowers and pruning shears aren't that much more effort - and most of us could use the extra exercise. If I charged these landscapers for all my lost productive time due to their noise and the impacts on my health from all the dust/noise/air pollution, an investment in batteries or extension cords looks pretty cheap.
Thanks for the memories! Every time I try and recreate my old Solaris environment from the 90's I discover that I'm missing the Fortran shared library that much of my code was linked with. I saved my Solaris CDs over the years but as you point out, languages were all add-ons. Anyone know where I can find the old Solaris Fortran shared libs?
It's a fun exercise to work out the Gravitational Force between the Moon and the Earth and between the Moon and our Sun. It will surprise many that the Sun exerts more force on the Moon than the Earth does. So the Earth inflicts a strong perturbation on the motion of the Moon but it's not the dominant gravitational force on the Moon.
Best. Game. Ever. Tempest came out when I was in high school, and my buddy and I would rather skip lunch and play this instead of eat each day. We produced a little booklet of each level we kept in our wallets so we could jot down where we had the best luck leaving the flipper while we fired away. I was thrilled to find a working Tempest at the “Game Master” exhibit in San Diego's Balboa Park last summer.
The earth is bathed in radiation from GPS transmitters and these clever satellites are using doppler radar techniques to see how those signals are being reflected from ocean waves. From the doppler shift you can infer wind fields. Consumer GPS receivers only compute position from these signals, but there is a lot of interesting science you can do from the raw signals with a hacked GPS receiver.