My first ride on a roller coaster was a scary experience! I never had a thought of wanting to ride a roller coaster for different reasons. The reasons for that fear was the fear of heights and the thought of me falling off the ride or some type of malfunction causing the roller coaster to collapse. I would just watch other people get on the rides and listen to them scream their hearts out. One summer night, my friend called me and told me that the fair was in town for the weekend. She thought it would be a great idea for us to meet up with some other friends and go to check it out. So we met up at the parking lot of the fair ground and walked in together. My friends never knew that I was afraid of heights, so I was hoping that we would just walk around and leave. We walked up to the booth to purchase some tickets and proceeded inside. So we walked around for about 10 minutes just browsing until we approached this one ride that caught my friends’ attention. We all looked at each other and screamed, “Let ride!” I hesitated and told them I rather sit this one out. My friends assured me that I had nothing to worry about and that nothing was going to happen. They continued to literally beg until I finally gave in. We waited in line until the ride stopped for the next group to get on. As I was standing in line, my heart was pounding and I began to sweat. As I stepped onto the ride and strapped myself in, I knew there was no turning back. As I felt the ride began to go back and forth, I quickly closed my eyes and took a deep breath. As the ride began to go higher and faster, I began to scream! All of a sudden I felt the ride stop. I then opened my eyes and saw that I was upside down and there was a very long drop. The ride began to go in complete circle until it stopped. After the ride stopped, I decided that I wanted to go for one more ride. Looking back on that experience I now realize that I should give things a chance before I decide not to try them. I also...
...Will be more lonely ere it will be less-A blanker whiteness of benighted snow
With no expression, nothing to express. They cannot scare me with their empty spaces Between stars--on stars where no human race is. I have it in me so much nearer home To scare myself with my own desert places.
When my love swears that she is made of truth
William Shakespeare (1564-1616)
When my love swears that she is made of truth, I do believe her though I know she lies, That she might think me some untutored youth, Unlearned in the world's false subtleties. Thus vainly thinking that she thinks me young, Although she knows my days are past the best,\ Simply I credit her false-speaking tongue: On both sides thus is simple truth suppressed: But wherefore says she not she is unjust? And wherefore say not I that I am old? O! love's best habit is in seeming trust, And age in love, loves not to have years told: Therefore I lie with her, and she with me, And in our faults by lies we flattered be. When my loue ſweares that ſhe is made of truth, I do beleeue her though I know ſhe lyes, That ſhe might thinke me ſome vntuterd youth, Vnlearned in the worlds falſe ſubtilties. Thus vainely thinking that ſhe thinkes me young, Although ſhe knowes my dayes are paſt the beſt, Simply I credit her falſe ſpeaking tongue, On both ſides thus is ſimple truth ſuppreſt : But wherefore ſayes ſhe not ſhe is vniuſt ? And wherefore ſay...
The main energy transfers that happens as a “car” travels along the track from the start of the ride to the end.
1. The main energy transfers are between gravitational potential energy (GPE) and kinetic energy (KE), and the eventual decrease of mechanical energy as it transforms into thermal energy. Rollercoasters often start as a chain and motor exercises a force on the car to lift it up to the top of a very tall hill. At this height, GPE is at its highest, as we can see through the formula:
GPE = mass x gravitational field strength x height (for all physics in relation to Earth, take g to be 10 m/s2 or 10 N/kg)
We can see through this formula that as the height increases, so does the GPE, which will then be converted into KE, or kinetic energy. This is the energy that takes place as the “car” is falling down the hill. This is calculated through the formula:
KE = 0.5 x mass x speed
This means that the kinetic energy increases as the speed increases, and vice versa. Therefore, this means the higher the kinetic energy, the faster the “car”. We can actually be extremely specific in terms of this relationship. We know that as the mass doubles, the KE doubles, but as the speed doubles, the KE quadruples. This becomes important when analysing this formula:
KE = GPE/0.5mv2 = mgh
2. A rollercoasterride is a thrilling experience which...
...RollerCoasters: Adrenaline-fueled Architecture
600 years ago, rollercoaster pioneers never would have imagined the advancements that have been made to create the rollercoasters of today. The tallest and fastest rollercoaster in the world is the Kingda Ka, a coaster in New Jersey that launches its passengers from zero to 128 miles per hour in 3.5 seconds (most sports cars take over four seconds to get to just 60 miles per hour). It then heaves its riders skyward at a 90-degree angle (straight up) until it reaches a height of 456 feet, over one and a half football fields, above the ground, before dropping another 418 feet (Coaster Grotto "Kingda Ka"). With that said, rollercoasters are about more than just speed and height, they are about the creativity of the designers that build them, each coaster having its own unique way of producing intense thrills at a lesser risk than the average car ride. Rollercoasters have evolved drastically over the years, from their primitive beginnings as Russian ice slides, to the metal monsters of today. Their combination of creativity and structural elements make them one of the purest forms of architecture.
The debate over where and when the first true roller...
...One evening back in high school, I was waiting for my friend, Chelsea, to give me a ride to cheerleading practice. I was only fifteen and did not have a car, or even a driver’s license. When she arrived at my house in town, I climbed into her 1991 Chevrolet Monte Carlo, and we were on our way.
On our way back home from practice, we decided we did not want to return home just yet, so we headed out of town. Chelsea turned on to an S-curve gravel road, and I told her to stop the vehicle to switch me places so I could drive. I wanted to show her how I could drift the car through the corners of the road.
I fastened my seatbelt, turned up the radio, and hit the gas. We had reached the first turn of the S-curve going about 45 miles per hour. Once I started to turn the steering wheel, the back end of the car started to slide a little more than I had planned. My heart was racing, and I started to panic. I turned the wheel back in the other direction hoping it would stop it from sliding off the road, but that wasn’t the case. Once we hit the ditch, the car started to roll.
From there it was like everything was in slow motion. Everything in the car went flying, Chelsea was screaming at the top of her lungs, and the passenger window glass shattering. Finally, it stopped. The car was now sitting up right, and everything was still. I looked over and asked Chelsea if she was alright, and she...
...to love going to amusement parks because rollercoasters fascinated me. These beastly machines are usually made of steel or wood, can go as fast as 120 miles per hour, and reach the height of 420 feet. It amazes me why average people like me would trade the tranquility of the ground to be high up in the air, being tossed around with such brutality and roughness, like vegetables in a food processor. Even still I enjoyed riding these fast amazing machines, sometimes so fast, that no matter how hard I tried to scream, my cry would not come out, as if it was trapped inside my body. I specifically liked the steel rollercoasters with several loops, for they would give me the sensation of being spun around like rotating car wheels. The wooden rollercoasters are also very fun because they sway much more than the steel ones, bringing back good childhood memories of when my dad would push me on the swings. What I enjoy the most about these captivating rides, and what makes me want to ride them again, is the thrill and excitement of having survived them. As I became older and gained more responsibilities and duties, going to theme parks became less frequent, but the excitement of riding rollercoasters still intrigues and amuses me. Rollercoasterrides are...
Olsen, Andrew. "RollerCoaster Marbles: Converting Potential Energy to Kinetic Energy." RollerCoaster Marbles: Converting Potential Energy to Kinetic Energy. Web. .
"RollerCoasters." RollerCoasters. Web. .
Thesis: Create a rollercoaster and place small marbles on top of therollercoaster so it would go farther then a big marble if they are in the same height.
I. How do rollercoasters function or how are they made?
A. What designers look in a rollercoaster
II. Building a model rollercoaster
1. Popsicle sticks, toothpicks
2. Wires, metal, wood
B. Marbles being used to experiment what goes faster
1. Small marble and big marble
III. Bigger marble rolls down faster
A. The mass of the marbles being used
a. Three grams and two grams
B. What force is being used
a. Fast and slow force
A. Improving the rollercoaster to be good enough for the marbles
V. Rollercoasters is a interesting thing to experiment because potential and kinetic energy is being used.
The excitement of riding rollercoasters is always fun...
...Post Graduate Programme in Management
Organizational Power and Politics
case summary #1
The RollerCoasterRide: The Resignation of a Star
20th – January - 2015
Course Instructor: Prof. S. K. Ghosh
Submitted by: Group – 13, Section – B
TheRollerCoasterRide: The Resignation of a Star
This case is about power dynamics of attracting, retaining and compensating a star performer in a services firm. These are shaped by interdependencies between people and exogenous factors like labor market and competition.
In the case Peter Thompson’s informal source of power which resides in his star status and his relational power grows big enough to question Stephen, in whom the formal source of power lies.
Stephen Connor who is the director of research at investment bank RSH is faced with a threat of resignation by one of the best performers in the department, Peter Thompson. Peter had been consistently ranked in top five by Institutional Investor (II) magazine which made him all the more popular and helped RSH attract better deals and commission. Peter’s rise was partially due to rising semi-conductor industry and mentoring from senior analysts. However, seeing that he was indispensable for the bank, he decided...
...surrounded by silence. Darkness was my only companion, apart from my dad. I was looking ahead towards the long road in front of me. And a sudden surge of emotions ran throughout my body. I was excited, yet I felt unsure. I felt unprepared. But, nevertheless, I wanted to get it over with.
After a long debate with my dad, he finally agreed to let me drive to Ateneo but with the condition that we had to leave the house at five in the morning. I did not think he would have let me though, at this point early on, when I have only been going to driving school for about two weeks. He loves his car a lot, so much so that no one else gets to drive it, with only me as the first exception. I can recall how much anxiety I saw in his eyes, as he sat there on the passenger seat while I was manning the car.
My dad, being the conservative and old-fashioned person that he is, has all of his cars with manual transmissions. And a newbie like me that is tasked to drive a manual transmission car is definitely no piece of cake. Along the way, every time I made a mistake, Dad would be shouting as he corrected my mistake, and his yelling was by no means helping me to calm down and focus on the road. What made the driving all the more hard was that he was confusing me. Whenever I was driving slowly, he would tell me to speed up; however, when I was already speeding up, he would then tell me to...