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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
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15

Ordered a gift for a friend I hope he likes it :)

John G.May 16
✓ Verified Purchase

Mug was well-packed when received. Shipping was timely. The mug was as advertised. Very nice.

Pat P.May 16
✓ Verified Purchase

BEST THING EVER. CUZ YK WHAT!!?!? IT. IS. A. MUG. WITH MY NAME. AND. A COOL DESCRIPTION. ON. IT. I LOVE IT.

GETRC45CG4T X.May 16

Just what I expected! Thank you!

H P.May 16
✓ Verified Purchase

I bought this friggin thing thinking my whole life would change. Guess what? It still sucks! If this friggin thing can't change my life then I don't want it!

Lesko B.May 15

This is a great gift to give after our Urban Dictionary inclusion

Manley P.May 14
✓ Verified Purchase
Review by Chanda J.

It's perfect!! Thank you!

Chanda J.May 13
✓ Verified Purchase

My Name is Walter Hardwell White, My Mug was sent to 308 Negra Aroyal Lane, AQ, New Mexico and arrived on-time and I am very satisfied. My "Glock Dookie" mug is great for my lab work, and my friend Pinkman loves it!

Walter W.May 12

I love this cup! My now ex-husband loves his opioids more than life itself. He would constantly pass out dead to the world the only thing I would here was his death moans. I had to call an aid car for him so many time that I can't remember plus 2 or 3 times the doctors told me that if it wasn't for me, he would have died. Her abandoned me after I was diagnosed with ovarian cancer because I was of no use to him any longer. I have no clue now who must be the one that's obligated to save his life any longer. All I know is I'm free from him now. The only thing I'm waiting for is that he finally overdoses himself & he's dead. I am buying a cup to send to him for our divorce anniversary gift so he can keep it in memory of how he treated me.

Debra I.May 11

I loved it! Excellent quality!

Barbara W.May 10
✓ Verified Purchase

I received the mug as a gift from a friend with whom I exchange "Weekaversary" eMails. I love the concept but am wondering why "aniversary" is spelled with only one "n?"

Suzanne Z.May 9

Wish it had the example text as well, but I loved it anyway

ToryMay 9
Review by Fredric C.

It’s great to be able to create your own mug.

Fredric C.May 7
✓ Verified Purchase

My name is is Geet and literally this is literally a gem of a souvenir to have with me XD.

geet A.May 7

I love to put my lips on this in the morning

Macks N.May 6

this mug got me hard

quandale dingles brother l.May 6

greatest mug ever.

Mike H.May 6

I Loved The Cosmic Animates Mug. 10/10

Jamie w.May 6

Great cup. Thanks for personalizing the message

Charles B.May 6
✓ Verified Purchase

I did not order anything, and got a stupid cup

Jeannie H.May 5
✓ Verified Purchase

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Each product is custom-printed with your unique text, making it truly one-of-a-kind.

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