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Tech stuff: A four-stroke engine's cylinder fires only once every two revolutions. A two-stroke's cylinder fires every revolution, so a 2-stroke has (all things being equal) double the output for the same cylinder size. Problem is that 2-stroke petrol engines don't scale up in size well (though some industrial Diesels *are* 2-stroke). The rotary fires (like the 2-stroke) once for each revolution, so it has potentially twice the output for the same volume as a 4-stroke, plus the rotary *does* scale up OK. Piston engines absorb energy during the compression cycle, giving a negative torque, but rotaries provide positive torque for each entire revolution, since compression, power and exhaust occur simultaneously. Rotaries can run to very high rpms compared to piston engines because their motion is continuous rather than reciprocating and because the few rotating parts are small-ish and can be made very robust, while piston engines are limited to lower and lower rpms as they scale up. Rotaries are thirsty if you cane them, but I get 30 mpg touring at 70 mph in my 1985 Series 3, no mods. Fuel consumption is an issue - it's to do with the combustion space being a long, thin rectangle, rather than the more ideal cylindrical space of a piston engine. And having a turbo giving over 270 shaft HP from a 1.3 litre engine has got to be a temptation.... But no, NOTHING else in the car park looks as damn sexy!

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The Urban Dictionary Mug

Ceramic mug (11 oz)
Printed on-demand just for you
Dishwasher safe
Microwave safe
Word on front, definition on back
Comfortable handle
Every order personally reviewed
636
62
10
1
15

Now I have a UD mug! Good quality, nice printing, great definition!

Joseph S.Feb 20
✓ Verified Purchase

Your company did an excellent job with our order. The beautiful mug with our son's word and definitions arrived in perfect shape, thanks to your outstanding box design! I have never seen a box so cleverly made. I cannot bring myself to recycle it;). The mug will be enjoyed for years to come. Many Thanks, Deborah Crosley Holland and Michael Holland

Deborah H.Feb 20
✓ Verified Purchase
Review by dave  p.

Got this mug for my daughter and she was taken a back. I explained to her why it was funny, but she didn't seem to understand. Its been a few days since my daughter has talked to me. I'm positive she loves it! I'm hoping to hear from her soon :)

dave p.Feb 19

Arrived before my daughter’s birthday, which was good. Not chipped or cracked, so that was good, too. Ichabod Crane looked good on the ferra color.

Karen M.Feb 19
✓ Verified Purchase

Looks great. Made a cool gift. Quick shipping!

Mike B.Feb 19
✓ Verified Purchase
Review by Grant S.

It holds liquid, very good

Grant S.Feb 18
✓ Verified Purchase

I use it to catch my cum

Fuck U.Feb 18

the mug is really durable, my parents beat me with it and it doesnt break

butt m.Feb 18

Love this mug, I like to use it to defecate in which I then feed to my family. 5 stars.

John B.Feb 18

Quick shipping and awesome hysterical product!

Karin L.Feb 16
✓ Verified Purchase

I fucked with it for months before i finally ate it.

12314 1.Feb 15

Great mug! Got a homo mug for a friend's birthday and he adored it. :)

Cassiel M.Feb 15
✓ Verified Purchase

love it

celine d.Feb 14
Review by poop f.

THINGS ARE GETTING A LITTLE WILD AT CAILLOU'S HOUSE!

poop f.Feb 14

The thing is amazing. Also everything on the back is true!

NikolaiFeb 13

Professor - I am loving this ....not all professors are blasted toward intellectualism. I believe smart comes in all different sizes, color, beauty, and personality. I will use this coffee cup proudly. Loving it in Denver. Jax

jaxFeb 13

It was great! Very hard to break and easy to hold! Also very cute

Sanjay P.Feb 12
Review by Manley P.

I sent my friend the Wordle URL for her to enjoy. She did her first Wordle and got so excited, she sent me a text including the answer she got. This showed at the top of my screen and I read it - there was no way to un-read it so I was ... wordlefucked for the day!

Manley P.Feb 12
✓ Verified Purchase

Solid mug. Funny design. Fair price

Steve C.Feb 12
✓ Verified Purchase

My dad hits me with his mug. It's very very durable

Ball L.Feb 11

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