The conjunction of two broods of cicadas is going on now. It is called a super-brood. One brood has a 13 year cycle, and the other brood has a 17 year cycle. Using maxima, one can calculate the number of years for this conjunction with the least common multiple function. […]
Linux
I write this blog entry on Tuesday April 9, 2024. It is the day after the Solar Eclipse of April 8, 2024. Today, a software CD that I ordered arrived. The envelope was marked “Fragile: Handle with Care”. Inside, I found a shattered disk, shattered in plastic shards. I ordered […]
SOLAR ECLIPSE APRIL 8, 2024 (45388.500000) 19.000000 -91.207250,36.622630 ELEVEN POINT STATE PARk MOON UT=19.000000 POSITION AZ 206.066919 (206.100000) EL 58.527943 (58.500000) REF USNO
It’s as easy as 123. Quick reminders. Solar eclipse Monday, April 8, 2024 Unix epoch end Tuesday, January 19, 2038. 03:14:07 UTC 2038-01-19
Maxima 5.41.0 http://maxima.sourceforge.net using Lisp GNU Common Lisp (GCL) GCL 2.6.12 Distributed under the GNU Public License. See the file COPYING. Dedicated to the memory of William Schelter. The function bug_report() provides bug reporting information. (%i1) is(1200>70*7); (%o1) true
Maxima 5.41.0 http://maxima.sourceforge.net using Lisp GNU Common Lisp (GCL) GCL 2.6.12 Distributed under the GNU Public License. See the file COPYING. Dedicated to the memory of William Schelter. The function bug_report() provides bug reporting information. (%i1) 1+3+5+7+9; (%o1) 25 (%i2) 1+3+5+7+9+9+7+5+3+1; (%o2) 50
Technically, Passover ends at sunset / sundown on April 13. Installing Orbtimes then one can type nicks@johndenver:~/Documents$ orbtimes Sunset local day Wednesday 19:27.015425 April 12 2023 Sunrise local day Thursday 6:29.800781 April 13 2023 I can check this against Google search which says 7:37 PM which is a ten minute discrepancy. […]
<2021-08-17 Tue> 24:21 azimuth 145 degrees calculated azimuth=188.408225 degrees clockwise from north and altitude 32.149676=degrees above horizon <2021-08-18 Wed> 23:56 local time, or 4.93 UT. Observed azimuth 160 degrees. calculation. ./orbtimes -vvv –saturn –location=”38.6N 90.2W” –date=”2021-aug-18″ -Z”4.93″ Saturn azimuth=179.058814 degree and altitude 32.602583=degrees above horizon Maybe this is Jupiter…. Jupiter […]
Get a Windows 10 (or other version) boot image (e.g. windows.iso) file by downloading from Microsoft. Insert the USB thumb drive. Note what device Linux has given it. (e.g. /dev/sdb ). Put a partition on the drive with fdisk. Put a file system on the drive with mkfs.fat -F32 Copy […]
In my youth, I was taken to an Atheneum. This was a private library which was an exclusive privilege akin to a golf course, swim club. I was introduced to the difference that privilege can give you. Later, I got a job working in my school library. I reshelved books […]