Linear Thermal Expansion: A Hard-core Ninja Adventure


This is a poster I made for a physics test. Three hours of hard-core image searching and I found the ninja pictures I needed. While others made their posters about dull physics, I made mine about ninjas, with the obligatory physics part added on.


Long ago, there was a ninja. He had an awesome, steel, 0.75 meter ninja sword.

He was very powerful and had been on many adventures. One time he went to the Caribbean to fight evil pirates.

In the Caribbean, it's hot, somewhere around 29.4 degrees Celsius. The ninja was used to fighting in the cold weather of Japan, where he was born. In Japan, it's normally around 6 degrees Celsius.

After the battle, in which the pirates were utterly defeated, the ninja noticed that his sword was 4.375 x 10^-6 meters longer.

The ninja was confounded, so he called upon the wisdom of Prince Kofuku using ninja telepathy techniques.

"Hello," said Prince Kofuku. "You have question for me?" "Yes," said the ninja. "My sword has lengthened, and I have seen no gods of lengthening recently. I am confounded."

"This is simple one," said Kofuku. "Linear thermal expansion is cause you seek. Increase in temperature brings increase in length and decrease in temperature brings decrease in length, thanks to l - l = l (T - T ). Change in length of object will equal coefficient of linear expansion multiplied with initial length multiplied with quantity of final temperature minus initial temperature. Change in length for sword of yours equaled 4.375 x 10^-6 meters, because temperature changed from only 29.4 degrees Celsius to 6.1 degrees Celsius. Change in temperature, or 23.3 degrees Celsius, multiplied with initial length of 0.75 meters and multiplied also with coefficient of linear expansion for steel, 2.5 x 10^-7 resulted in small change of length. If sword were heated to 100 degrees Celsius, point of boiling water, change in temperature would be 93.9 degrees Celsius, and sword's length would increase 1.761 x 10^-5 meters instead." Prince Kofuku thought for a while, then asked, "Are you not student of Ms. Banasik, wise physics mage from Conneticut?"

"Errr..." said the ninja, wearing a goofy face of embarassment. "Yes, but sometimes I skip class to fight pirates. I shall stop and learn well from now on."

"Glad at your change of heart am I. Continue on your quest, ninja-son," said Prince Kofuku.

Back to the genius that are the Writings of Tito, please.