Big Glass Klein bottle – Classical shape, 9 inches tall.

Here’s what Felix Klein had in mind back in 1882,
when he first dreamed of a closed, one-sided surface. It’s
elegantly curved, with a side loop making a transverse puncture
at the nexus. An Acme Classical Klein Bottle is big enough to
show to a classroom, yet slides easily into your backpack for
trips across the Yukon.

With its center of gravity directly over its
base, your Acme Classical Klein Bottle stands on its own — no
need for extraneous stands, complex levitation apparatus, or
unreliable anti-gravity fields. Indeed, in the absence of
external forces, its polhode rolls without slipping on the
herpolhode lying in the invariable plane.

Unlike those inferior 4-dimensional Klein
Bottles, you can fill your ACME Klein Bottle with water! An
ordinary wine bottle cork fits the mouth, so you can completely
fill the reservoir and side arm with no leakage. Click here for filling instructions.

NOW! BETTER THAN EVER! GUARANTEED FREE OF MAGNETIC
MONOPOLES!

This timeless exemplar of topological genius and
glass blowing artistry costs just $73 – only slightly more than
the value of Lehman Brothers Bank!

• – Height 190 mm (7.5 inches) (plus or minus 15mm)
• – Diameter 95 mm (3 3/4 inches) (plus or minus 10mm)
• – Weight:225 gm (8 oz) (plus or minus 25 gm)
• – Nominal volume 600 ml (11 fluid ounces) (Archimedian
  displacement when filled with air)
• – Actual volume 0.0 ml (0 fluid ounces) (plus or minus 0.0 ml)
• – Fully calibrated
  with a removable decal
• – Includes Acme’s quality topologial
  and physical features
• – Guaranteed against lots of problems

Because these are handmade, no two glass Klein Bottles are identical. One
may be slightly taller, thinner, or might have slightly
different curves. (Sorta like humans. Except that people aren’t
usually onesided. Politicians excluded.) In our photos, various
pencils, eggs, onions, and bananas are used to show the size,
quality, and versatility of each Klein Bottle. Please consider
these as serving suggestions.

Like Acme’s
other fine Klein Bottles, this is handcrafted from the
purest Borosilicate Glass … Pyrex, Kimax, Bomex, or Simax. It
has a bulk density: 2.23 gm/cm3 and expands just 0.000326% per
degree C. This means that it’ll shrink only a few microns when
you trek from Tucson to Nome. Nor should you worry about it
dissolving — we have tested samples in water, acetone, and
Jello.

To order a Big
Classical Klein Bottle for $73, click here: