What is Building: Definition and 918 Discussions

A building, or edifice, is a structure with a roof and walls standing more or less permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, and aesthetic reasons. To better understand the term building compare the list of nonbuilding structures.
Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the outside (a place that at times may be harsh and harmful).
Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic expression. In recent years, interest in sustainable planning and building practices has also become an intentional part of the design process of many new buildings and other structures.

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  1. S

    Solving Projectile Motion: A Building 70.0 m High

    Homework Statement A ball is thrown horizontally from the top of a building 70.0 m high. The ball strikes the ground 90.0 m from the base of the building (Neglecting air resistance). How fast and at what angle (relative to horizontal) does the ball strike the ground? Homework...
  2. R

    Understanding Generators: How to Predict Performance Before Building

    I was thinking if the strenght of the permanet magnet could be parallel to I , the rate at which the the magnet (or wire) rotates parallel to V & of course the wire resistance would go with R . If there is some type of way to determine the outcome of a generator before building it, starting it...
  3. M

    Need Help - Building own parking sensors

    Hi I am relatively new to electrical engineering, I want to make my own parking sensors for a motorcycle, don't ask me why, I would just like to play about with the idea. Could anyone suggest what sort of sensors I would need and frequencies etc?, I am looking to have one separate transmitter...
  4. T

    Building Height Calculated - Thanks Thaakisfox!

    Problem solved! Thanks again Thaakisfox! Homework Statement A ball thrown horizontally at 2.2 m/s from the roof of a building lands 36 m from the base of the building. Calculate the height of the building. Vox = 2.2 m/s Xo = 0m Vx = 0 m/s X = 36m Homework Equations y = Vosin ao - (0.5)(g)(t^2)...
  5. Drakkith

    Building a Stirling Engine at Home

    Hello all. I've been wanting to build a Stirling engine at home out of parts that i could easily afford/scrounge up. Not one of those small ones that you hold in your hand, but one that could generate some real work. Enough to run a small generator maybe. The problem is that i have absolutely no...
  6. marcus

    Building space with quantum chunks (Bianchi Doná Speziale)

    The nodes that have been used in LQG to build spatial geometries (almost from the start) turn out to be quantum polyhedra. MTd2 spotted this paper yesterday: ==quote== http://arxiv.org/abs/1009.3402 Polyhedra in loop quantum gravity Eugenio Bianchi, Pietro Doná, Simone Speziale 32 pages, many...
  7. D

    Calculating Building Height Using Balloon Drop Experiment

    Homework Statement you and your friend throw balloons filled with water of a roof of a building. You drop yours from rest, he throws his with an initial speed of 72.52 m/s^2 3.7 seconds later. They hit at the same time. How high his the building. Homework Equations V=Vi+at (V^2) -...
  8. A

    Stones being dropped and thrown from building

    Homework Statement A stone is dropped from the roof of a building; 1.90 s after that, a second stone is thrown straight down with an initial speed of 29.0 m/s, and the two stones land at the same time. a. How long did it take the first stone to reach the ground? b. How high is the...
  9. H

    Building Torsion in Company Cafeteria, Ditzingen

    I am looking at this building and wondering how building torsion is resisted as well as what role the roof diaphragm plays in it, hence what would be the shear force and bending moment diagrams...
  10. P

    Assistance on building energy unit with alternators

    If someone could assist me with some information re: the following it would be very much appreciated. I am planning to build an energy system for my home to address the drastically increasing power bills we have been getting as a result of the unusually hot weather lately. Problem is I am not...
  11. L

    Building a Stair Climbing Robot on a Budget

    Homework Statement Build a stair climbing robot. There are no required dimensions. Homework Equations MONEY The Attempt at a Solution I need help brainstorming on some designs of a stair climbing robot that is cheap but yet effective. I have connections with law enforcement so...
  12. D

    Designing a Closed Loop Water Tunnel for Fluid Dynamics Experiments

    I am trying to design and build a small scale desktop water tunnel so I can observe the fluid dynamics of airplane models. I was thinking of a closed loop system using a long fish tank with a circular hole at both ends. PVC pipe will be attached at both openings. how does going from a round...
  13. P

    Building a Simple metal detector circuit

    Hi guys, I am new at this so sorry if i get the format wrong. Im trying to build a basic metal detector that will respond when a steel pendulum passes nearby. A simple response is all that is needed right now. I thought of this: Building a RL circuit with a copper coil air core. placing a...
  14. B

    Building a Simple 9V Boost Converter for a Spark Plug

    hi, i am pretty new with electronics, and i can't find any simple boost converter circuts on the enternet. i would like to make the circut THE MOST SIMPLE i can, with the fewest possible parts. for a power source, i have 9v-1w. for the output power, i would like to send a thin spark from 1...
  15. R

    Building a Solar-Powered Stirling Engine

    Hi Guys I m trying to make a Stirling engine power by solar heat. Somewhere I found out that the solar flux available on Earth is abt 1350watts/m2 Is this heat energy only or "heat & light " combined?? I m trying to find out if my soar engine will be better than traditional solar...
  16. E

    Superconducting Super Collider still worth building after LHC?

    The canceled Superconducting Super Collider had 3x beam energy of 40TEV vs LHC 14TEV. While it has been cancelled, could it be re-started 20-30 years after LHC hits diminishing returns in the future? Is there any new expected physics in SSC range over and above LHC that would make it worth...
  17. T

    Building Neural Networks with C++

    Hello again, Im trying to build a neural network using C++. Has anyone had a go? I think the potential implications are really interesting and would like to hear about how people might have implemented them. Another general one for anyone.
  18. Pengwuino

    Building up a department/HS Outreach

    So here is the situation our department seems to face. We are a fairly large public school in the central valley of California. Our department is shrinking and there is little opportunity for students to be competitive for when they apply to phd schools. This summer, a fellow student and I are...
  19. C

    How can I build my own EEG machine?

    As useful as an EEG machine would be for me, I can't afford to buy one but I'm going to build one in the near future. There is a lot of information on this site http://openeeg.sourceforge.net/doc/ and from what I've read so far, building an EEG machine is no simple matter. Not for the layman...
  20. L

    Building a RC Aircraft with Recovered Control System

    I recently extracted the control system out of a severely damaged RC aircraft (a very simple kit deal). It's got two servos, and a pretty good motor, which works out perfectly for me! I want to build a new aircraft from scratch using the recovered control system. For the fuselage I'm...
  21. S

    Spin Coupling, Matrix Building

    So I understand that the tensor product of two vector spaces constitutes a new vector space. In the case of spin coupling you have some arbitrary vector |x,z> where x represents the spin state of particle 1 and z represents the spin state of particle 2; bot spin states being general 2 element...
  22. J

    Help Building a House - Weight Load of Steel Beam

    Hi there, could someone "please" help me with a Q regarding weight loading of a steel beam. I wish to remove a post over my verandah which would leave a span of 7110mm, The verandah comes out 2.4m, and has steel rafters 1800mm apart with steel roof batterns and will have a corugated iron...
  23. W

    Building a Betavoltaic battery

    Hello, I would like to start by saying that I know very little about nuclear decay, so please do not flame me if this is a silly question: I am wondering if it is possible to generate enough potential to light an LED indefinitely using pure beta decay. Let's say the circuit consists of a...
  24. J

    What is the ideal weight for a 24-year-old in bodybuilding?

    Hi myself Johny. My age is 24 years old and recently my weight is 55 KG. So that I want to know that exactly how much weight I want at this age?
  25. N

    Practical approach to building a breeder reactor, help please?

    hi, i am interested in nuclear physics but i don't really want to delve into the complexity of it, so could someone please give me an idea of the practical approach to making a breeder reactor, i do not intend to build one, i just would like to know how i would do it if did want to build one...
  26. C

    Building a Robot - Need Advices

    Hello! Well I am in second year Engineering Physics and we're building a robot this summer. We have four students in my team including myself. We're to build a robot that follows a loop of black tape on a track, and race with other robots. I have a few questions: 1. We decided to use...
  27. M

    How can I build a functional gyroscope?

    I need to build a working gyroscope. Where can I find information on how to build one? also what materials to use to build it? Any Ideas?
  28. jacksonpeeble

    Designing a Goblet: Homework Equations & Attempt at Solution

    Homework Statement As our final project, we have been instructed to design a goblet (which will actually be physically prototyped using a 3-D printer) according to the following specifications: 1. The goblet must hold exactly 200 cc. 2. The goblet must be symmetric (a solid of revolution)...
  29. P

    Understanding Phase Space and Building It

    Could anyone explain me what a phase space is and how we can build it?? Thanks in advance.
  30. D

    Finding work for lifting a chain with winch on top of a building

    Homework Statement A winch is positioned on top of a building, a distance 70 m above ground level. A chain of length 95 m and a mass per unit length of 1.2 kg/m hangs from the winch along the side of the building. Find the work done (in Joules) in reeling up 60 m of the chain.Homework...
  31. 6

    Building a Submarine-Like Structure: Materials & Thickness for a Given Volume

    I´m trying to find approx. numbers or formulas for a submarine like structure to mantain a constant volume. For a given volume, which materials and to what thickness should the container be?
  32. B

    Building a 10m x 2m Steel & Concrete Footbridge

    hey ppl, In a nutshell, need to come up with a 10mX2m foot bridge over a river made from steel and concrete also to include foundation design. borehole data are as follows. Depth. Description 0.2M Topsoil 2.60M...
  33. S

    Building Ventilation ODE

    Homework Statement There are two storage rooms, (A) and (B) connected by a single doorway. Only room (B) has an outward vent, so all air exiting the rooms does so through this vent in room (B). The ventilator you will install drives outside air (78% nitrogen) at a certain flow rate through a...
  34. J

    Building a Simple Remote-Controlled Switch

    Hey all, I am trying to make a simple remote controlled switch (without any digital IC's) and was wondering if anyone knew of any schematics, etc. Thanks, John
  35. N

    DC Motor Questions -- Building my own motor

    Hi, I am attempting at making a simple device that will run on dc power that just spins a item i place vertically in the air. I am trying to do it without having to by any of the parts being i could just buy a new one for around 250 bucks. My first question is how to you determine the...
  36. P

    Engineering Help Building 4-Bit Searching Circuit

    Hello, I am brand new to this forum. It looks like there are a lot of people that might be able to help me on this project. I need to build a 4-bit searching circuit. The circuit takes a 4-bit word and searches a 4x15 memory for that word. It will have two modes, a Load Mode, where the words...
  37. L

    Building Up Principle & Fine Splitting

    Hi 2 all, building up principle is defined in the following form for, for example, Scandium (21): 3d^{1}4s^{2} building up principle defines: 4s < 3d so, the energy of 4s level should be smaller than for 3d the energy is defined as: e[\text{n$\_$},\text{j$\_$},\alpha...
  38. M

    Is time runs faster at the top of a building or at the bottom ?

    :confused: Is time runs faster at the top of a building or at the bottom...?
  39. C

    Build Transformer: 110V-1V, 2 Electrodes | DIY

    Is it possible to build an adjustable transformer that can take 110/120 and dial it all the way down to 1 volt? I'd like to build one if possible to aid in physical development so it's very important to be able to take it as low as possible in the beginning. I'd like it to have 2 electrodes as...
  40. Char. Limit

    I'm on ur building, riding mah invisible bike

    O hai. http://laughingsquid.com/the-worlds-largest-lolcat-invisible-bike-mural/ I found this freaking hilarious, even if it is old. And for those of you who don't know what LOLcats are (shame on you!), here's a TVTropes explanation: http://tvtropes.org/pmwiki/pmwiki.php/Main/Lolcats...
  41. W

    Building Solar Cell Battery Light

    Hello. As a memorial I am trying to build a light-sensitive unit that will make an LED continuously glow at night. I want to put this in an extremely remote place and be reasonable confident that it will continue to operate indefinitely. The idea is that once it becomes dark, a photodiode will...
  42. E

    Building a Newman Motor: I Need Help Troubleshooting!

    . I tried making a newman motor according to a video on youtube. I have copper wires coiled around a plastic pipe, 200 above and 200 coils below the middle of the plastic pipe. The shaft in between is made of iron and it is quite thick. Now when I connect a 9v battery to the two ends of the...
  43. L

    Building a Line Following Robot: Issues & Solutions

    I'm working on a robot for my final project in class. It's your basic line following deal. It has 5 sensors that face the floor on the front and it just follows a track made of black tape. I'm just going to use this one thread for all my issues. Current issue: I don't get a certain type of...
  44. M

    Help? design of system to stabilise building in earthquake

    The project entails the design and simulation of a system to stabilize a building in the event of an earthquake. The idea is to numerically test the response of the system to earthquake conditions and see how it performs. It will also involve varying the relevant parameters to obtain the most...
  45. J

    Building an IR Modulator: Troubleshooting Low Voltage Output

    Hey all. I am building an IR modulator but seem to have a small kink in the design. Here is my schematic: Here is a picture of the oscilloscope, connected between ground and the output of the TL555 timer and the output of the second transistor (the output pulse going into the LED's)...
  46. S

    Building a simple mobile phone

    I was searching about the possibility of building a simple mobile phone, but I found an old topic here indicating that this is pointless and hard. Actually I want to make a mobile phone which only receives the incoming ring and vibrates. I am asking about the possibility of doing this ? It...
  47. X

    Engineering Homework: Tower & Building Heights and Distances

    Hey guys! Me and all of my friends got this work for a mathematics question. But none of us can figure it out. We think they supplied too little information. We studying Engineering. I hope I posted it in the right place. Homework Statement The base of a building and the base of a...
  48. A

    Building a mousetrap vehicle which executes a 180 degree turn

    For class, a partner and myself must build a mousetrap vehicle which travels down a runway (120 inches), executes a 180 degree turn around an obstacle(72 inch maximum width) and travels back past the finish line. http://www.geneng.mtu.edu/olympics/2010/mousecar_competition_b2010.pdf click here...
  49. G

    How High Was the Ball Thrown From the Building?

    Homework Statement A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.70 m/s at an angle of 22.0° below the horizontal. It strikes the ground 5.00 s later. Find the height from which the ball was thrown. The Attempt at a Solution i...
  50. K

    Building a cardboard bridge

    I am building a cardboard bridge that is supposed to span 7-9 feet and made of cardboard. I am having trouble however designing the abutments. The bridge will simply be placed on a table (no suspension designs btw) and will have a maximum 10% grade. What will be the best way to design the...
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