Bookplate

Ephemeris books on shelf
Books and books of tables upon tables.

As one would imagine, university buildings have tons of books in them. Shelves upon shelves, editions going back well over a century. See above, The American Ephemeris and Nautical Almanac, 1887. Is it useful? Not particularly these days. Does it look cool on the shelf in line with year after year of its subsequent volumes? Of course!

Note the volume near the middle of the image, with the well-worn spine. It’s a duplicate of the book to the right, the 1922 edition, save for one key detail. A bookplate:

Bookplate
There’s a lot going on here.

Ex Libris Harry Scheidy Everett. Listed in L’Agenda 1925 as Associate Professor of Mathematics and Astronomy and Director of the Observatory, he was already a Bucknell alumnus, having received his Master of Arts on Wednesday, June 18th, 1913, according to the Bucknell Catalogue of 1912-13. (He also played the violoncello.)

Astronomy now lives under the Physics umbrella, rather than Mathematics, although we’re all stacked on top of each other here in Olin Science.

Have a look at that bookplate, and imagine that self-described philomath Dr. Everett was having a grand old time drawing that up. In case you can’t read it, the inscription above the doors reads: “Let none ignorant of Geometry enter here

Bet he was a unique individual, that Dr. Everett.

Oscilloscope

Tektronix 503 oscilloscope
Ooh. Vintage.

It’s a regular occurrence that we run across old objects which just aren’t useful anymore, at least not as they were originally intended. Sometimes they’re junk. Sometimes they work well enough, and it’s nice to have a backup around, just in case. And sometimes?

Sometimes it’s old enough that it’s got a little bit of cool going on. Like this 1960 Tektronix 503 oscilloscope. It shouts SPACE AGE! from all angles. (Our good friend Matt likened the round display screen to a porthole into a sea of electrons. Of course!)

Oscilloscope front
Belongs on a rocketship or a submarine. Or, in a Venture Brothers world, both!

It might not work anymore – probably depends on whether the capacitors are still in good shape – but we haven’t tried. It’s not like we’re going to use this in place of any of the other, more modern, higher-frequency, smaller-footprint ‘scopes we’ve got in numerous labs. This stays around because it looks amazing.

Oscillosocpe interior
Look at those resistors!

Even the insides are fantastic! Big honkin’ resistors, induction coils, capacitors, all widely spaced for effective heat dissipation. You can trace how each knob turns and switches circuit components in each of those cylindrical arrays. As a kid, this is probably the mental image of what it looks like inside a giant robot. Giant robots are the best robots.

Oscilloscope interior.
Look at those tubes!

On the other side, we can check out all of the vacuum tubes that made this sucker hum. Plus a big ol’ transformer and a wonderfully stylish CRT for the display. Vacuum tubes don’t show up many places anymore, having been replaced with miniaturized circuit components, but we still have use for them in special cases. (Photomultiplier tubes in our wave-particle duality lab, for example.) Despite their rarity, you can’t deny that they look awesome.

Oscilloscope manual.
Check the cutout!

We even have a pair of manuals. A pair. Does that mean there were once a set of 503s around? Could we possibly stumble across another, gathering dust beneath a workbench in a dark corner someplace?

After all, that’s where this one popped up, undisturbed for decades. Never know what you’ll uncover.

Solar Eclipse

Observatory log sheet

As we prepare for the next major solar eclipse in North America – mark your calendars for the 8th of April, 2024! – it’s fun to look back at Observatory records from previous eclipses. On May 10th, 1994, nearly 300 people congregated at the Observatory to take in the spectacle of a partial eclipse.

It’s worth noting that getting the full experience of totality requires a perfect combination of timing, location, and decent weather. Not simple.

This particular event was an annular eclipse, in which the moon’s apparent diameter was less than that of the sun, so that there was always a portion of the sun’s disc visible, creating an annulus (ring) when viewed along the path of greatest eclipse. Still amazing.