Jump to content

ZZ's Blog

Sign in to follow this  
  • entries
    31
  • comments
    9
  • views
    3,643

Entries in this blog

 

Bicycle Kicks

The other day I was watching a soccer game, West Ham United vs Arsenal FC. I know I do blogs on soccer all the time but it's because I am just so fascinated by the things these players are able to do, hence why they are professionals. One of the players, Andy Carroll scored a bicycle kick, where a player flips himself/herself upside down with their foot in the air and kicking it over their head (sometimes referred to as an "overhead kick"). While this one was good, it reminded me of one from sev

ZZ

ZZ

 

Kobe Jumps a car

In my previous blog I discussed the physics behind Kobe jumping a pit of snakes, which I believe is legitimate (or at least physically possible). Now I'd like to discuss another instance of Kobe's famous athleticism: him jumping over a car moving towards him. This one seems fake to me in theory because the consequences of the stunt are too much to warrant him doing it. However, I still think it'd be cool to think about the physics of it. This one is definitely faked. If you were t

ZZ

ZZ

 

The Black Mamba jumps a pit of snakes

Kobe Bryant just retired after 20 years at the Lakers. As a player straight from high school into the NBA he has set many records and is arguably one of the best basketball players of all time. One thing that him and other basketball players are known for is his jumping (which might not be as good as it was 10 years ago). I figured this would be as good a time as ever to analyze his jumping skills in two videos - one of him jumping a pit of snakes and dunking a ball, and of him jumping over a ca

ZZ

ZZ

 

Spitballs

So the other day at lunch when a couple of us were spitballing ideas for blogs, I figured what's better topic than spitballing itself. To test the physics of this I took a straw from the lunchroom and a smaller one from a different chocolate milk container of mine, with a similar radius. I blew projectiles (not at anyone) and found that the larger straw sent them further and faster than the shorter one. This is most likely because the longer the force I exerted on the spitball was, the larger th

ZZ

ZZ

 

The art of being a goalkeeper

Yesterday I was watching soccer on TV and saw Ronaldo notch a hat trick...yet again. However, I rather began to ponder the physics behind being a goalkeeper to stop shots - maybe not as perfect as Cristiano Ronaldo's. Physics can separate the good from the great goalkeepers. Here are some factors in being a good goalkeeper: 1. Momentum- A goalkeeper must have his/her weight shifted forward, standing on their toes. When a shot comes, the goalkeeper will try to save the ball while moving

ZZ

ZZ

 

Stuck in a "Pickle"

Recently I've had a little bit of a pickle fetish. However, one of the things that is inevitable for us regular pickle-eaters is the difficulty in taking of the lid of the jar. One tip I have is to run the jar under hot water. This way the lid will become easier to turn. This is because metal has a higher coefficient of expansion than glass does. Thus, as the jar stays under the hot water, the metal expands a tiny bit, and the glass stays the same (I also find it easier to use my left hand

ZZ

ZZ

 

Water Skiing

Like many other students, I am looking forward to summer. One activity many people enjoy is water skiing! Water skiing has a lot of physics involved. The basics are essentially based on angles and gravity. When you get up from the start, your ski must be at a certain angle so that the water pushes down on the ski, creating a downward force that enables you to stand up (otherwise you'll just fall flat on your face). Once the forces up from the water and down on the ski are equal, you're set for t

ZZ

ZZ

 

Mousetrap

The other day I went to do my weekly chores, one of which was picking up and setting new mouse traps if needed. It turns out that today was an unlucky day for a certain rodent. I grabbed myself a new mousetrap after cleaning up the carnage from before, and began to set it. Now that I've set many before it does not seem too hard anymore, but it still requires a lot of care when handling one, since it could seriously injure an appendage if set off accidentally. I thought about it and realized that

ZZ

ZZ

 

A Purrfect Landing

Once upon a time, in a school far far away, Mr Muz told us that a cat has a natural ability to be able to land from a building without dying. I figured, "if there's no physics explanation to this phenomenon that would be shocking." What confused me the most wasn't the landing, because cats can get injured from the stress put on their legs from extreme distances, but how the cat can maneuver its body in the air so quickly and that it lands on its feet. This is something humans cannot do with

ZZ

ZZ

 

Crazy Magnets

Recently while fishing for some blog-worthy material I stumbled upon one of my favorite youtube channels that posts cool videos on all sorts of sciency stuff. Since magnetism is not the most heated of debates amongst us students for some odd reason, I figured a video on magnetism might spice things up a bit for me. I learned about a whole new type of manufactured magnet that I thought would look really interesting to a technology guy like me.  Now we all know about magnets, right? One end i

ZZ

ZZ

 

Pizza Tossing

Pizza tossing is something that looks absurd at first - throwing dough into the air and spinning it around like a basketball on your finger. As it clearly takes a lot of skill, it also possesses several aspects about physics. Most obviously the pizza is given a centripetal acceleration of v^2/r and a force of mv^2/r and it can be treated as an object in uniform circular motion. The most  ideal motion for a single toss is a spiral trajectory. When this dough is at rest the tosser must apply

ZZ

ZZ

 

Slingshots

Something I used to love using as a kid was a slingshot. It's so fascinating that a mechanism as simple as one of these can shoot something so fast. I thought I'd go through some of the physics behind this. As the elastic band is stretched, the potential energy stored is similar to that of a spring. However, the longer you take to aim the slingshot, the more potential energy you lose due to heat loss (aim fast!). If you happen to be making your own slingshot you would think that using a thi

ZZ

ZZ

 

Badminton

One sport other than soccer that I feel I have a skill set in is badminton. It may look somewhat easy to a first-timer but there is a lot of strategy involved as well as skill obviously. Badminton is one of the fastest sports there is, faster than soccer, tennis, and even baseball. Usually it is played indoors, if played as an official sport, since the birdie can be very easily manipulated by the weather conditions. There are four basic shots: A smash, clear, drop, or drive - all of which should

ZZ

ZZ

 

The Element of Curve Explained

There is a video from awhile back that always makes me think about how good some soccer players really are. One skill that I believe exhibits complete mastery is curving or "bending" a soccer ball from a stationary free kick (at rest). Obviously this is not just some weird thing that happens, there must be a reason that physics can explain behind it. Upon further research there is; it is called the "Magnus Effect." This is done when either a clockwise or counter-clockwise spin is imparted on the

ZZ

ZZ

 

Physics of FIFA

Like Nate Charles, I too enjoy the game of FIFA that Electronic Arts puts out every year. As a soccer player, I'm not quite sure how much of it translates into real life, as many of the players are capable of things they can only wish to do in real life. While fidgeting the other day I managed to score a goal with Cristiano Ronaldo, one of the most famous soccer players, from 42 yards away. If you know anything about soccer, you'd be pretty impressed as most goals are scored inside 18 yards. I d

ZZ

ZZ

 

Rear Ending Someone

I realize that when someone refers to a vague scenario about a "friend" who did something, people often jump to conclusions and assume they are sharing an embarrassing personal anecdote. However that does not apply at all here. Recently, I was in a little fender bender with one of my friends (his/her identity remaining undisclosed) and it was unfortunately a rear end collision. I'm not sure if I could've been in a scenario that screamed momentum any more that this one. If we treat this like

ZZ

ZZ

 

Take a Trip Once

It has come to my attention that the lunches I bring to school each day are fabled to be one of the best around. This however does not simply just happen. It requires an extensive shopping trip to none other than the Irondequoit Wegmans to collect everything I might need to keep me focused during the day. I'm not going to describe all of the food I get because that would be weird and unecessary, however there is one aspect of my journey in getting the food to my house that I had never really pon

ZZ

ZZ

 

Sledding

Since we finally have snow and I plan on going out sledding to maintain some sort of sanity through midterm week, I thought I'd go over some of the basic physics involved.  In a way it's kind of like those ramp problems that we've seen far too many times with a block sliding down it. I usually enjoy building a jump about 3/4 of the way down the hill, where I will have reached a high velocity. This allows me the greatest X and Y displacement which I could indeed calculate if I measured how f

ZZ

ZZ

 

Do you wanna curl a "snowman"?

Recently my social interactions led me to watching an invigorating game of men strategically sliding stones of inertia 0.5MR^2 on an iced lane with a low coefficient of friction: Curling. It's probably a sport that most of us in New York have not tried since it's not very mainstream. However, I may have to consider making a guest appearance at the most prestigious Rochester Curling Club. Watching this sport on television led me ponder the physics behind it. Curling may be the only sport whe

ZZ

ZZ

 

Do you wanna curl a "snowman"?

Recently my social interactions led me to watching an invigorating game of men strategically sliding stones of inertia 0.5MR^2 on an iced lane with a low coefficient of friction: Curling. It's probably a sport that most of us in New York have not tried since it's not very mainstream. However, I may have to consider making a guest appearance at the most prestigious Rochester Curling Club. Watching this sport on television led me ponder the physics behind it. Curling may be the only sport whe

ZZ

ZZ

 

How to Bowl a 300

Not too long ago, over Christmas/Hannukah break, I decided to go out with a few friends and their significant others to go bowling. I went into this experience with extensive Wii bowling experience, however I hadn't touched an actual alley for about a year - the formula for success.  It has come to my attention that I might have been our team's downfall (we played in collective teams of 3). As I gave my ball of inertia (2/5 MR^2) an impulse to send it down a low friction alley for (hopefull

ZZ

ZZ

 

The Big Race

Just yesterday in class it seemed everyone had a good time racing some cans that they though would go the fastest. However, there were a few unexpected victors in the bracket as we saw the two walk-ons: Orange Gatorade and Mr. Temple's water bottle reach the finals, with the Orange Gatorade getting the dub in 3 matches. Why was this? In general, we know that the higher the mass and radius of the can, the faster it will go (i.e. its Moment of Inertia). We know the moment of inertia of a cyli

ZZ

ZZ

 

Breaking Down Doors

Recently I was catching up on watching The Big Bang Theory. While the show rarely actual physics aside from the main character, Sheldon Cooper, I did witness something the other day that I thought might be a good topic to research. In the show, one of the characters, Howard Wolowitz's, mother fainted in the bathroom after receiving some bad news, and he had to break down the door, and he had to break down the door to get her to the hospital. His approach: run at the door full speed, shoulder fir

ZZ

ZZ

 

Bicycle Riding

Recently I turned 18, and with that comes extra driving priveleges for those who did not take drivers ed. Thinking about all the years of being a kid made me ponder a time before I ever drove a car, when I would ride my bicycle. I can remember when I was younger riding my bike almost every day during the summer - wind blowing through my hair ready to go up to the high school's turf. Pondering this thought again now, there are a lot of physics applications in cycling. The bicycle takes powe

ZZ

ZZ

 

The Slinky

Most people have played with a slinky before, it goes down as one of the most classic yet simple toys of all time probably. My dad told me the other day about it being the 70th anniversary of the slinky being up for public sale. The story goes, the inventor - Richard James - thought of the idea when he was using springs to create instruments to stabilize boats in rough seas. While doing this he accidentally knocked a spring off of a shelf and watched as it fell down the stairs in a graceful mann

ZZ

ZZ

Sign in to follow this  

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

×
×
  • Create New...