Rimstain, the Coffee-Ring Mapmaker Mug
Coffee-ring effect: evaporation-driven outward flow deposits particles at the drop edge.
The joke: Insider: capillary flow, not 'drying slower'. The slogan on the mug reads EVAPORATION PUTS EVERYTHING AT THE EDGE.
Source: R. D. Deegan et al., Nature 389, 827 (1997).
Shipping calculated at checkout by destinationMade to order, ships in ~10 days
Details
Size & material11oz · 15oz
Black glossy ceramic mug with a C-handle. Lead- and BPA-free.
- 11oz: 0.33 l
- 15oz: 0.44 l
CareDishwasher & microwave safe
Dishwasher safe (top rack) or hand wash. Microwave safe.
ShippingBy destination
Shipping calculated at checkout by destination.
Made to order: about 10 days of production and handling before it ships.
Returns & replacements21 days
Every item is printed to order, so we can’t accept returns or exchanges for change of mind, or if you ordered the wrong size or colour.
Print defect, misprint, damage or the wrong item? We’ll send a free replacement, or a refund if you prefer. Report it within 21 days of delivery with a photo; no need to send it back.
Field notes
Wyświetl wszystkie-
What Are Lagrange Points, and Why Does JWST Sit...
Lagrange points are five spots where a small object can keep pace with two big ones, like a spacecraft riding along with the Sun and Earth. We work out where...
What Are Lagrange Points, and Why Does JWST Sit...
Lagrange points are five spots where a small object can keep pace with two big ones, like a spacecraft riding along with the Sun and Earth. We work out where...
-
Feynman Diagrams Explained: What the Little Squ...
A Feynman diagram is not a photo of particles bouncing around. Each little drawing stands for one term in a calculation of how likely a process is. Here is how...
Feynman Diagrams Explained: What the Little Squ...
A Feynman diagram is not a photo of particles bouncing around. Each little drawing stands for one term in a calculation of how likely a process is. Here is how...
-
Marie Curie’s Discoveries: Radioactivity, Polon...
Marie Curie did not discover radioactivity. Henri Becquerel found the rays in 1896. What she did was turn a strange effect into a science: she showed the rays were an...
Marie Curie’s Discoveries: Radioactivity, Polon...
Marie Curie did not discover radioactivity. Henri Becquerel found the rays in 1896. What she did was turn a strange effect into a science: she showed the rays were an...
