That is a good question. I've come across many things that pull and get longer, but there are very few things in life that don't get shorter when pulled. As far as I've been aware of myself, a cigarette would get shorter when pulled. If you whistle and blow inwards, you are sucking air. Sucking is a type of pull. You would pull by sucking/blow a cigarette, thus a cigarette would be an item that gets shorter when pulled.
shorter
Ways that make you appear shorter is slouching, slouching will make you appear shorter so if you stand straiter you will appear taller
13 mm is shorter.
7 ft is way shorter
Yes
A knot goes shorter the more you pull it.
A candle. As it burns, it gets shorter in length but longer in wax height.
One possible answer might be people - people get shorter the older they get.
never heard of a negative modulus. Some special class polymers have negative Poisson ratio so when you pull on it gets wider inserted of narrower, but I know of none that get shorter when you pull on it
elevation
altitude
altitude
elevation
altitude
The wavelength gets shorter.
Candle
As an inclined plane gets shorter, the angle gets steeper and the effort becomes greater.