Tower Definition and 187 Threads

A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures.
Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building.

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  1. A

    Help Explaining Physics of freefall tower

    Homework Statement I need to explain the physics of a free fall drop tower ride, 250 feet high, car holds 35 people and I'm assuming you would need the mass of the car so help me out there. Also, It is not supposed to exceed 3 g's when braking. It would be awesome if someone could help me...
  2. E

    Is a Small Scale Tesla Tower Possible Today?

    Hello, We are two students trying to build a small scale Tesla Tower (http://en.wikipedia.org/wiki/Wardenclyffe_Tower) that perhaps would transmit electrical energy wirelessly through a house. But first, before we start building this, we are starting on a small scale electrical energy...
  3. M

    Help with an absorption drying tower

    Can I just say that anyone willing to offer help I will pay them £20+ an hours for their time, I could only really see this happening over msn real time chat though, but I will publish findings on this site. I am studying chemical engineering and am having trouble with a problem, I am only...
  4. A

    What Are the Dynamics of a Motor Tethered to a Tower?

    Homework Statement A 50 meter tower is on a flat plane. A 10 kg motor is tethered to the top of the tower by a 100 meter wire. The motor fires with sufficient force that has a constant angular velocity of .75 rad/sec. 1) What is the tension in Newtons on the tether? I think one uses...
  5. P

    Could Tesla's Wardenclyffe Tower Have Revolutionized Wireless Energy Transfer?

    Is There Any Reason Why Tesla's Wardenclyffe Tower Wouldn't Work? All the sources I've seen on his work and inventions give the impression of him being a great inventor but his greatest works being denied because of politics and economics. Are there any Physics based reasons why his...
  6. A

    Building a Balsa Wood Tower- Tips and Ideas

    I was assigned to build a structure out of balsa wood (1/8 X 1/8 inch) and glue. It has to be between 7.5 and 8.5 inches high , cannot have mass greater than12 grams, and has to be able support at least 60 pounds (this would only get me about a C) while withstanding torque. I've been...
  7. M

    Fluid Mechanics: Water leak in a water tower

    Problem: A water tank develops a leak 20 meters below the surface of the water. The tank is 20 meters above the ground and the hole leaking water is 0.5cm in diameter. How far from the tank will the water hit the ground? I used P1 + (1/2)(ρ)(v1^2) + ρgy = P2 + (1/2)(ρ)(v2^2) + ρgy I then...
  8. W

    Paper Tower Challenge: Build a Stable Tower Using 1 Sheet & 3 Feet of Tape!

    technology assignment= PAPER TOWER you can only use one 8 1/2 by 11 sheet of paper and 3 feet of tape you can tape it to the floor has to stand for 5 minutes there are other threads about paper towers but none of them are specific enough to understand. i was going to do the eiffel...
  9. M

    Solving a Tower Building Recurrence Relationship

    Hello everyone. I"m having troubles figuring out this recurrance relationship. The problem is the following: A set of bloks contains blocks of heights 1, 2, and 4 inches. Imaigne constructing towers by piling blocks of dferent heights directly on top of one another. (A tower of height 6...
  10. M

    Tower of Hanoi, 4 pegs i'm not sure what they are asking

    Hello everyone. I'm trying to figure this out, The problem says: Suppose that the Tower of Hanoi problem has four poles in a row instead of three. Disk an be transfeered one by one from one pole to any other pole, but at no time may a larger disk be placed on top of a smaller disk. Let S_n...
  11. D

    Challenge To Build The Tallest Tower

    Hi, I just popped into see if there are any budding young engineers here (hope I got the right forum) interested in helping with a problem that I have been nutting out over the years... Hope your forum can help. It is all about controlling sway and buckling of members and gaining the full...
  12. B

    Winning the Paper Tower Challenge

    I've spent about 6 horus this weekend trying to construct to build a paper tower that will support thick textbook 14 inches off the ground. the requirement is that it weigh less than 15 g. you can use tape and paper and that's it. Cylinders cannot exceed 5 cm in diameter. Tried making a bunch...
  13. C

    Magnitude of force exerted by cables on a tower

    Given the tower is 70 m high, and the force of FAB= 2 kN and the x and z components of the vector sum of the forces exerted on the tower by the 3 cables are zero. I have found the lengths of all 3 cables. I have also found the unit vectors for all 3 cables. I just do not know how to find the...
  14. P

    What is the Remainder of a 3000-Layer 7 Power Tower Divided by 11?

    Consider an exponential tower of three thousand 7's. What is the remainder when you divide the tower by 11? Note that this notation means 7^(7^7) not (7^7)^7. So it's kinda like the Ackermann Function maybe? The final answer must be given as a single integer in the range 0-10. Anyone got...
  15. P

    Modular Arithmetic and Exponential Towers: Solving the Power Tower Puzzle

    Consider an exponential tower of three thousand 7's. What is the remainder when you divide the tower by 11? Note that this notation means 7^(7^7) not (7^7)^7. So it's kinda like the Ackermann Function maybe? The final answer must be given as a single integer in the range 0-10. Anyone got...
  16. P

    What Is the Remainder of a 3000-Layer 7 Power Tower Divided by 11?

    Crazy Power Tower Problem. Consider an exponential tower of three thousand 7's. What is the remainder when you divide the tower by 11? Note that this notation means 7^(7^7) not (7^7)^7. The final answer must be given as a single integer in the range 0-10. Anyone who can help?
  17. I

    Stuck on a Water Tower Pressure Problem: Dynamic or Static?

    i'm stuck on a problem. Let's say you have a large water tower. and the pressure is basically static pressure from the weight of the water. But when the water starts moving through pipes is the pressure then dynamic pressure? In which would you have to calculate the pressure from 1/2 density of...
  18. C

    Exploring the Mysterious Water Droplet Tower Phenomenon

    I was just wondering if anyone could explain the phenomenon seen when a water droplet falls into larger expanse of water (i.e. the kind of water 'tower', like in the picture)? It's something I've wondered about for a while, and I've never managed to come up with a satisfactory answer myself...
  19. S

    Parabolic Photovoltaic Solar Tower

    I am attempting to design my own Parabolic photovoltaic solar tower for a school project. I am working on numbers at the moment, but any helpful Ideas about mirror angles or Pv collector chip placement would really be great. Also I plan on using a shaped Non-Imaging Fresnel lens to help...
  20. H

    Pumpkin Tower Challenge: Calculating Velocity at Launch & Landing

    Can anyone help with this problem?? Children bring their old pumpkins to a tower and compete for an accuracy in hitting a target on the ground. Suppose the tower height is h=8.0m and the bull's eye on the ground is a distance d=3.4 m from the launch point. (neglect air resistance.) If the...
  21. M

    Wonderful exponent tower property

    Hi dudes, don't be put off by the clumsy notation here. I was wondering about these particular exponent towers and this curious property of theirs... Let p be a positive integer. Then the exponent tower, composed of p+1 parts each of value p^(1/p), equals p. e.g. for p=2. tower part...
  22. M

    How to Calculate Differentials of Power Tower Functions?

    How Does One Find The Differentials Of Power Functions. Examples Like A[x]^b[x]^c[x]^d[x]... Where Those Are Functions Of X? In Cases Where These Functions Are Power Towers Of Another Variable,what Happens?
  23. S

    Soil Pressure Calculation for Leaning Pisa Tower

    ok the question goes sth like this,an equation of p=c1+c2*r^0.625cos@,where p is the pressure exerted on the soil,c1 & c2 are constant to be determined,r& @ are polar coordinates.(@ measured fr the x-axis which is of direction south) now the question states that pisa lean at an angle of...
  24. zoobyshoe

    The Tower of Babel: What Happened?

    The Stupid Quetions thread. No one knows how to play anymore and I hate to see the once magnificent Tower of Babel that it was whimpering and quivering like a stupified woodchuck hit by a car. Discuss.
  25. W

    My Close Encounter with a Power Line Tower

    I was out stargazing tonight in the middle of nowhere. Theres plenty of washes out in the skirts of our suburb and I drove out into one of them to avoid city lights. After about ten minutes I started noticing a small clicking sound, kind of like that of static electricity or a small spark, and...
  26. I

    How can I build a giant paper tower without using a ladder?

    Giant Paper Tower :) Fun Hello, My physic's class has been kicking butt all year, so much in fact that we are done with the book early. My teacher is having a contest for us. Build the tallest paper tower we can... ONLY using paper, but as much paper as we want. Construction MUST take place...
  27. B

    Building a Quake Tower for High School Physics Class

    hello. i have to build a "quake tower" for my high school physics class. it must be made from bolsa wood and be able to hold something like 10 pounds and be put on a vibrating table and not collapse. has anyone ever done a project like this before? do you recommend any specific designs? any...
  28. T

    How Does a Pendulum React in Freefall? CN Tower Experiment

    hi there, first post, hopefully not many more to come, i can usually do these problems but I am swamped, but then so is everyone else, just can't think about this stuff... You are in an elevator at the top of the CN tower. You have a pendulum and allow it to oscillate. The elevator falls to...
  29. M

    Solving the Tower of Hanoi with 4 Pegs

    There is a famous problem called the tower of hanoi in which you have n disks of increasing diameter, and three pegs. The object is to move them from one peg to another in such a way that no larger disk is on top of a smaller disk. the number of moves is defined by T(n)=2^{n}-1 A far...
  30. E

    Is the Tower on Mars Real or an Optical Illusion?

    Tower on Mars?? Help me debunk.. Theres a website pointing out something strange taken by the Orbiter. It's a picture with what appears to be an extremely tall TOWER on the surface of Mars.. http://www.geocities.com/marsunearthed/tower/tower.html I started wondering well is the picture at...
  31. M

    Build a Tall Paper Tower: Physics Lab Project

    I'm not sure if this would go more into the engineering section, but I think physics concepts would help out more. I might be wrong, if so, please move this thread. We have an extra day in Physics Lab and we're going to do a one-period long project -- We're going to be given a base, a normal...
  32. U

    Solving a Tower Height with Cosine Law

    Question: A man is looking at the top of a tower. The angle of elevation to the top of the tower is 10 degrees. 100m closer to the tower, a man has an angle of elevation to the top of the tower of 20 degrees, how tall is the tower? My Problem: I can solve this ver easily by recognizing...
  33. R

    Tower Trig Problem: Find Height of Chimney

    Three survey stations X, Y, Z lie in one straight line on the same straight plane. A series of angles of elevation are taken to the top of a chimney which lies to one side of XYZ. The angles of elevation of the top of the chimney measured ay X, Y, Z are 14 degrees 02 ', 26 degrees 34' and 18...
  34. I

    Building a 21cm Tower with 13 Sheets of Paper

    I'm not sure if this should be in Physics or HMWK Help. If it is not in the right place, please move it. In my Concep. Physics class, we've been assigned a project: We have to build a 21 cm. tower that can support a general baseball at 21cm above the surface of what the tower is on. We...
  35. A

    Australia Builds World's Tallest Solar Power Tower

    Looks like it is getting closer to being built.
  36. Zantra

    Is Stephen King Finally Finishing the Dark Tower Series?

    Rather than dig up the old one, thought I'd just start a new thread. For those of you Stephen King fans out there, the next installment of the Dark Tower series is due to be released this month. I've been reading King's books for close to 20 years, so I'm of course a die hard fan. All I can...
  37. Z

    Are You Ready for the Epic Conclusion of Stephen King's Dark Tower Series?

    Stephen King's grand epic(and his career, rumor has it) is drawing to a close. The final three books in The Dark Tower Series will be released within the next 18 months. Is anyone as excited as I am??
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