The nocturnal (or nocturlabe) is a very old instrument for telling time at night by measuring the stars. While concept is ancient, this design is all original. It is fully functional (all dials move properly) and meant to be worn as a pendant. This is now available for sale, as it has been tested and works nicely.

How to Use the Nocturnal:

The top of the nocturnal is where you see a bit of a ring around a spike. This ring can be strung with a chain and makes it possible to wear the nocturnal as a pendant. When reading the nocturnal, this end of the piece should always be up.

Your first step is to set the outermost dial on the date. The months are shown as letters, with January and December at the top, and the progression of the months running *counterclockwise*. Note that the exact position of the letter actually marks the middle of that month. Look closer at the piece and you will see the line that separates the months between the letters.

Now, hold your nocturnal up to the starry night sky, making sure that the date is still properly set. Locate the North Star centred in the hole in the middle of the Nocturnal. Then use the central dial (the one that looks like a pointer) to point to the two stars at the end of the bowl of the *big* dipper.

Once you have this all set. Look closer at the pointer and you will see that within the pointer is an eliptical ring and within this is a smaller pointer. This smaller pointer points to a roman numeral, which shows you the time.

Note again, that the roman numeral is centred on the middle of the hour. So, if the little pointer points in the centre of the numeral, it is in fact half past.

So now you can tell time at night without a powered time piece. This is great for night owls, vampires, and those who appreciate a gothic or steampunk look.

Cubichain bracelet (for custom sizes)
Interlocked cubes form a playful and delicate chain.
This unique eye-catcher will keep you distracted all day long :-)

Available in
Polished: sparkly white, coral red, royal blue, hot pink and violet purple.
Rough: black.

Details
Bracelet thickness: 8mm/0.3".
Minimal material thickness >1.0mm
Inner length: 14 to 24cm/5.5 to 9.4 Inch.
Actual length may vary about 5%, but material will stretch a little bit.

Which size?
Take a piece of string or measuring tape and wrap it around the widest part of your hand, as if putting on a bracelet. See example photo above.
Mark where it overlaps and measure the distance between the marks in cm.
For inches to cm -> multiply by 2.54.
Enter this cm value in the Inner Length field.

Popular sizes
You can order most popular sizes directly via the links below, this is cheaper and faster!
XS 14 cm/ 5.5 inch
S 16 cm/ 6.3 inch
M 18 cm/ 7.1 inch
L 20cm/ 7.9 inch
XL 22cm/ 8.7 inch
XXL 24cm / 9.4 inch

A matching necklace available here:
Cubichain Necklace 8

Remove Label
To aid in production and sorting the model will be labeled with a ring with info. You can cut of this ring with a strong pair of cutters/scissors.

This is the same as Elephant Lovely but with a color shell.

The iShark is an iPhone 'gramophone.' It magnifies the tiny speaker on your iphone when you pop it in the slot in the iShark's back (and also making your iPhone a dorsal fin). The sound emerges from the iShark's mouth. The blue color image is a suggested paint scheme, but you can paint it to match your favorite species. It has been modeled hollow to save cost to you.

A physical interpretation of a drawing by the same name published in the 1940 book "Mathematics and the Imagination." The toy features a hole through a hole in a hole...kinda mind-bendy. Order in "Frosted Ultra Detail" for the best possible finish, or in the Strong and Flexible plastics for color.

This is made by gluing two copies of the Round Möbius Strip along their boundaries. A Klein bottle in 3-dimensional space has to intersect itself, and in this case it intersects itself along a straight line.

Note: this is an updated version of the model from the one shown in the YouTube video.

This was designed with Saul Schleimer.