• Pixel-art Ringward, the High-Q Bellkeeper, on a black mug with the slogan "HIGH Q. STILL RINGING FROM THAT QUESTION."

IndexCatalogueMug

Ringward, the High-Q Bellkeeper Mug

$21.99 USD
$21.99 USD
İndirim Tükendi
Size

Quality factor Q = ω₀/Δω; a resonator's stored energy rings down as e−ω₀t/Q, so high-Q rings for many cycles.

The joke: High-Q resonators ring long after excitation, like the embarrassment of your question. The slogan on the mug reads HIGH Q. STILL RINGING FROM THAT QUESTION.

Source: A. P. French, Vibrations and Waves (Norton, 1971), chs. 3–4.

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.

Delivery times & where we ship

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.

Full refund & replacement policy

Field notes

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