Void Whisperer
Cosmological Constant Physics
Meet Void Whisperer. The universe's expansion is speeding up, as if empty space had energy. Adding up quantum zero-point energy naively gives a number up to about 10¹²⁰ times too large. The fix is unknown. On the mug: ρ_Λ ≈ (2.2 meV)⁴, in units where ħ = c = 1. Pixel-art full-wrap design on a black ceramic mug, 11 or 15 oz.
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
View all-
What Are Neutrinos? The Ghost Particles That Pa...
Neutrinos are the most elusive particles we know of. Thousands of billions stream through your body every second without touching you. Pauli invented them in 1930 to save energy conservation,...
What Are Neutrinos? The Ghost Particles That Pa...
Neutrinos are the most elusive particles we know of. Thousands of billions stream through your body every second without touching you. Pauli invented them in 1930 to save energy conservation,...
-
Hideki Yukawa and the Meson: How a Force’s Rang...
In 1934 Hideki Yukawa asked why the force that holds the nucleus together reaches only about the width of a proton. His answer: a force carried by a particle with...
Hideki Yukawa and the Meson: How a Force’s Rang...
In 1934 Hideki Yukawa asked why the force that holds the nucleus together reaches only about the width of a proton. His answer: a force carried by a particle with...
-
The Ising Model Explained: How Tiny Arrows Expl...
The Ising model is the simplest picture of a magnet: a grid of arrows that can only point up or down, each wanting to match its neighbours. Heat scrambles them;...
The Ising Model Explained: How Tiny Arrows Expl...
The Ising model is the simplest picture of a magnet: a grid of arrows that can only point up or down, each wanting to match its neighbours. Heat scrambles them;...
