Heinz-Bernd Eggenstein

@hbe
2 Followers
9 Following
68 Posts
Scientific Software Engineer, Amateur Astronomer

There is a bug in this picture

#olympusxa #filmphotography #filmisnotdead

Shot with Olympus XA on a very foggy day on Kodak Gold 200, at Schloss Landestrost, Neustadt am Rübenberge, Lower Saxony, Germany.

This "aphid art" was done by Wolfgang Buntrock and Frank Nordiek (Atelier LandArt). Originally there were (probably still are) dozens of these aphids in several towns of the Hannover region, mostly installed on the facades of town halls and similar public buildings.

Here's to Science!

#filmphotography #filmisnotdead #vintagecamera #olympusxa

Crop of a shot done with my "new" old Olympus XA. A wonderful piece of design & engineering of the late 70s.

This is the Gauß-Weber-Monument in Göttingen/Germany, obviously "enriched" by some pranksters.

When I got the scans I was kind of shocked how authentic the colors of Kodak Gold 200 are...it doesn't look a bit like "film aesthetics". I'll try KONO's "Monsoon" and "Moonstruck" films next.

#filmphotography #filmisnotdead #vintagecamera

A pier at Lake Steinhude #SteinhuderMeer in November 2024, with planks removed for the winter season. Festung #Wilhelmstein in the background.

Shot with #Agfa #Silette L , Model 1957, with Color Solinar 2.8/50mm lens &
Compur-Rapid shutter

Shot on HP5+

Doing useful science with the ZWO #Seestar S50 is easy. Currently at ~ 10mag (V), the recurring #nova #T_CrB is a good target for doing #photometry with small aperture instruments like the S50. Highlighted below is a dataset I did from this week: each data point is the average of measurements for 10 x 10sec exposures, green channel only, == > 0.01 mag standard deviation ( shown in #AAVSO Light Curve Generator ) Be the first to see T CrB go nova for the first time in almost 80 years!

#comet 12P/Pons-Brooks shortly after sunset 2024-04-10 , basically the last chance to see it for me from Germany before a) it's too close to the sun and then b) too far south and then c) too long until next time around

Taken with a 50mm aperture ZWO #Seestar S50 , here stacked (6 x 30 sec) and post processed with AstroArt and NeatImage

The latest version of the #pidp 10 simulation kit now lets you communicate from Linux via a #chaosnet bridge to ITS running on the "10".

E.g. you can use SUPDUP , which is described in the MIT AI LAB Memo 644 (issued in 1983) . SUPDUP was designed by no other than Richard M. Stallman and was intended to be a replacement for telnet. Well, this didn't quite happen. BTW, SUPDUP is short for "Super Duper" (really!!).

Read the memo here: https://dspace.mit.edu/handle/1721.1/5694

The SUPDUP Protocol

Playing around with the PDP-10 ITS (Incompatible Time Sharing system) simulation that is used by the #PiDP 10 project.

Step 1: Try SCHEME (a LISP dialect).

OK, defining a function that squares numbers worked, but WHY??? does 5^2 come out as 31 ???
It took me a while to notice that this is "octal in - octal out". Yeah I guess to the early "hackers" at MIT the decimal notation was just too arbitrary and anthropocentric to justify the extra cycles it would take to deal with it.