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jaygilbert last won the day on April 23 2013

jaygilbert had the most liked content!

About jaygilbert

  • Birthday 11/02/1995

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  1. can be painful, but physics none the less! love the game and now i know the physics part of it!
  2. jaygilbert

    Physics of Playing Guitar

    very interesting! i bet the same principles apply to all string instruments
  3. jaygilbert

    physics of rain

    physics can be found in everything, even the weather!! All precipitation contains elements of physics, however rain is perhaps the most interesting. Rain falls at what is called terminal velocity. this is when an object reaches a cirten speed and stops accelerating. The acceleration around earth is 9.81 meters per second^2. There is a very interesting physics consept as to why the rain water doesnt have a more devistating effect. most rain drops fall at a velocity of about 18 mph. getting hit with a rock going this speed would be a much different experience than being hit with a rain drop. the reason rain drops arent painful is due to the fact that they have a smaller mass. getting hit with a 4kg rock is a greater force, this is because the force is equal to the mass multiplied by the acceleration (g). Because the rain drops have a next to negligable masses the force that they impact earth with is very little and therefore doesnt cause more damage when it impacts earth. the shape of a rain drop is also an interesting and under studied phenominon. they are not tear drop shaped, but instead most of them look like small flattened hamburger buns. this is due to their size, bigger or smaller rain drops actually for different shapes depending on their air resistance due to their sizes. overall, rain is just an example of how almost every aspect of our world is determined by physics, even mother natures miracles!
  4. now we know why balloons stick to things!
  5. that video is crazy! i would love to try that! haha
  6. jaygilbert

    physics of golf

    one of the most relaxing sports to partake in is the sport of golf. Golf is a timeless sport that is a ton of fun to play with friends, not to mention golf is a very physics active sport! Golf is heavily reliant on properties such as kenetics and kinematics. Many golfers make physics decisions every time they play without even realizing it. Everytime a golfer chooses a club they deside what angle they will need the face of the club to contact the ball for the desired elevation and range. For example a driver will hit the ball with a small angle but with more momentum due to its larger size, however, if a wedge is choosen, the ball will travel a shorter distance but with a larger elevation. Using simple equations it is also possible to solve for the horizontal and vertical components of the golf balls velocity after coming in contact with the club. In order to solve for the vertical velocity you use the equation V(sinO), where V is the initial velocity of the ball and O is the angle of the club face. To find the horizontal velocity you use the equation V(cosO). This would be an interesting experiment to preform in that it would allow the observer to study in depth the differences in vertical and horizontal velocities for different clubs. For example, a club designed for maximum range will most likely have a greater horizontal velocity, and a club designed for lift and elevation would have a larger vertical velocity. Overall, golf is a very skillful sport that requires a basic knowledge of physics, whether the player knows it or not!
  7. i had a feeling energy drinks werent too great for you! thats really interesting, the word should be spread!
  8. love kayaking! great way to get on the water and takes a lot of skill and apparently physics too!
  9. really cool idea! phyisics is even in kids toys! haha
  10. in thinking about physics in different aspects of the world around us, I have come to realize that physics is in things that I use everyday, not just in things like sports! I drive my car everyday and an average car has hundreds of aspects of physics involved with its handy means of transportation. One of the most influential aspects of physics in an automobile is friction. Car tires are made of rubber outfitted with patterns which increase the coefficient of friction and thus create much more reliable traction. Car tires are made so that while going around a turn the wheels are able to grip the road and fight the G forces experienced during even a low speed turn. This diagram shows the tire preventing the car from slipping to the side around a turn, however I would like to discuss how the tire acts in the foward and backwards directions. As the car accelerates static friction comes into play. This is because the car tire actually has only one point of contact with the road at any given point. So, while the tire is moving, it only has one point of traction on the road, that is as long as you dont step on the gas too hard! There are point where the tire will loose traction during a violent turn or during a quick acceleration. The diagram below represents different traction patterns which varry according to the desired preformace and intended use of the tire:
  11. really cool idea! wouldnt have thought of physics in that setting until I read this.
  12. One of my favorite things to do during the fall and summer is sailing. Along with skiing, I think that sailing is one of the most physics filled activites you can partake in. Sailing is infinatly more complicated than most people think it to be, there are an unimaginable amount of variables that come into play when trying to harness the wind to move a boat. The sail is obviously the most crutial element to the sailboat. The sail provides a wide and flexible shute in which the wind is caught. When traveling perpandicular to the direction of the wind the sail only does half the work for the boat. Each sailboat has some sort of flat board that hangs below the boat. Since the wind is actually pushing the boat sideways, this center board provides a flat surface which counter acts the direction the wind is pushing the boat, so the boat is able to move foward under the power of the wind. Another element to the physics behind sailing is the angle of the sail. The sail position is the most important element to getting a sailboat to move. For an experienced sailor these sail positions become second nature, but for someone whos never been out on a sailboat before the positions of the sail in regaurd to the wind can be a very confusing concept. The sail must always be perpandicular to the direction of the wind. The crew or skipper of the boat has control of the sail position, so whoever is in control can let out the sail or haul it in, which will adjust the angle between the side of the boat and the sail from any angle from 0 to 90 degrees.
  13. knowing what happens when you wring out a towel in space, i wonder what would happend if you froze water in space?
  14. thats a cool question and i like the video. is there any other animals that can do this?
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