A Summer to Remember

Sasha Bouyear - 3rd Hour

Summer Fun!

During the summer, I went on a nine day trip on the St. Croix, a river that drifts in and out of Wisconsin and Minnesota as part of my two week stay at Camp Uni-Li-Ya, where, along with two other female campers, three male campers and two supervisors, we canoed down the river and camped out every night. I went on this trip on the 4th of August. I traveled there by car to Serling, Wisconsin, then took a van with everybody else to one of the river landings, in hopes to gain a new experience of camping in the wilderness, and to make more friends on this trip.

Look at Me!

The Science of It!

On my trip, we were all forced to carry the canoes over our heads and bring them to higher ground. I noticed that many of the campers (including myself) became tired and weak after holding the canoe. Though carrying canoes doesn't seem like a scientific topic to talk about, I have experienced lifting weights and learned how the weight of an object affects our body, leading to my first connection to science; the activity connects to the mechanics of the human body. When doing this activity, we were all tired carrying our canoe to shore. We all got tired quickly with holding such a heavy canoe, and after we got our canoes up on land, our backs were aching from doing such a simple task. Why so? Due to many theories. I've found, there is one that makes the most sense; its the amount of exertion we use to carry a canoe. The amount of exertion put into carrying a canoe is made possible by your skeleton and your legs, that help you with the task, such as carrying a heavy item.

How it works is when the canoe is straight over your head, the weight goes directly to the firmer parts of the skeleton, including your spine, hips, and legs. When we carry an object in this fashion, the skeleton is supporting the weight, but because of its fragile state, more exertion is needed from muscles in the arms and shoulders to help support the item, making our muscles sore and our backs ache.

Another connection of this activity links to the gravitational laws of Newton. I think this because one of Newton's law on universal gravitation states that two bodies in the universe attract to one another with a force that is directly proportional to the product of both of their individual masses and inversely proportional to the square of the distance between both of them.

How this works with the canoe and the person carrying it? Well, when we carry the canoe, the canoe seems heavier as you rest it on your shoulders. This is because the gravitational pull of the canoe to the person carrying it makes it more difficult to carry.

I Wonder...?

1. I wonder if we were to carry the heavy object a different way, would the task be easier or harder?

2. I wonder how we can try to ease the weight of heavy objects so we wouldn't have as many back aches or sore muscles?

3. I wonder how Newton had come to conclusion of his laws on gravity after the apple fell on his head?

4. I wonder if a certain body structure could do to the task better than other body structures?