A partir de hoy, una entrada semanal los lunes. No os preocupéis que ya hay más de 200 entradas preparadas para el curso 2012-13.
Gracias a todos y en especial a Marta, que volverá los viernes con más entradas super interesantes.
Visitas 557.579 desde su creación y 1080 entradas
Elizabeth Paley’s Klein bottle, on left, is another bottle with holes, similar to thePorous Coke Bottle that we looked at on Monday. But while drilling holes in a normal bottle may render it non-functional, a Klein bottle is fairly non-functional to begin with.
The bottle on the right is a plastic Klein bottle, designed by Nancy Shaw and available for sale on the ACME Klein Bottle site. ($30)
There’s also a $72 Klein bottle opener that is similarly perforated…
Does it therefore follow that there are perforated Klein bottle caps?
(Asked and answered, after the fold…)
Yes. But not the kind of caps that go on bottles.
The last time we touched on Klein bottles was back in 2009. Maybe it’s time to delve deeper into the Klein bottle thing. (Klein bottle week?)