A drive-through or drive-thru (a sensational spelling of the word through), is a type of take-out service provided by a business that allows customers to purchase products without leaving their cars. The format was pioneered in the United States in the 1930s by Jordan Martin, but has since spread to other countries. Hillcrest State Bank, Dallas, Texas, installed the first drive-through banking system in America. It was a George Dahl designed building, constructed in the 1920s, across from SMU. The second recorded use of a bank using a drive-up window teller was the Grand National Bank of St. Louis, Missouri in 1930. The drive-up teller allowed only deposits at that time.Orders are generally placed using a microphone and picked up in person at the window. A drive-through is different from a drive-in in several ways - the cars create a line and move in one direction in drive-throughs, and normally do not park, whereas drive-ins allow cars to park next to each other, the food is generally brought to the window by a server, called a carhop, and the customer can remain in the parked car to eat. However, during peak periods, to keep the queue down and avoid traffic flow problems, drive-throughs occasionally switch to an "order at the window, then park in a designated space" model where the customer will receive their food from an attendant when it is ready to be served. This results in a perceived relationship between the two service models.
Drive-throughs have generally replaced drive-ins in popular culture, and are now found in the vast majority of modern American fast-food chains. Sometimes, a store with a drive-through is referred to as a "drive-through", or the term is attached to the service, such as, "drive-through restaurant". or "drive-through bank".
Drive-throughs typically have signs over the drive-through lanes to show customers which lanes are open for business. The types of signage used is usually illuminated so the "open" message can be changed to a "closed" message when the lane is not available.
I am a 23 year old male virgin who is unattractive and unable to secure a relationship with a woman he finds attractive. I have tried being with women who are equally attractive as me and doesn't work I just am not attracted to them. My issue lies in the sex-drive I am ok with being a virgin but...
Hi, so I'm trying to troubleshoot my gf's external hard drive and I'm looking for some advice or suggestions on things to try.
Basic specs:
Age: 1 -2 years
Capacity: 500gb
Interface: USB 2.0
Brand: Western Digital
She was just transferring files to it and suddenly it became super...
Firstly, I am not an engineer or engineering student. I come from an art/creative background. However, in what may be arrogance, I'm convinced I can solve a problem that no one but me thinks is a problem. Further, I'm spitting in the face of a system that has been fine for everyone else for...
First of all this is not a perpetual motion machine and is not the previous U Reusable Fuel Transit Drive I designed earlier. This type of transit drive, which doesn't reuse fuel, works in theory by having two combustion chambers and their respective exhaust nozzles positioned parallel to the...
Hi, this problem’s been bugging me for ages. I’m sure it’s just a simple misunderstanding somewhere on my behalf but I just can’t seem to get my head round it.
Homework Statement
A monorail car with front wheel drive and mass of 5 tonnes is suspended from two wheels 10m apart as shown. Its...
I am using 4 MOSFETs in an H-bridge. The H-bridge is controlled with two MOSFET drivers (specially IR2113). I aim to drive the H-bridge via PWM which is carrying a 50Hz sine wave.
Note that, the load is not a motor. Instead, the H-bridge is being used as a inverter. My question is, does the...
Does anyone have any experience with replacing a laptops hard drive with a solid state drive? I want to buy a cheap little laptop, an Acer, but also buy a solid state drive and immediately swap out the mechanical drive for a solid state drive. Does anyone know if this is typically possible...
I have a unique problem in that I would like to test out an operating system on a PC (M1400 Tablet) that has no Hard disk. Before I had the tablet I had assumed I would be able to boot it up using a thumb drive to test out the Linux support for the stylus.
Anyway, the Bios doesn't expressly...
One of the all-time great science mysteries is now a step closer to explanation. The surface of the sun, known as the photosphere, can reach temperatures of 5,000 degrees. To many it would seem logical that the temperature would lower further away from the sun. But, the outer atmosphere, known...
Dawn spacecraft is nearing Vesta and is planned to go into orbit 16 July.
http://science.nasa.gov/science-news/science-at-nasa/2011/06jul_vestamoon/
The craft will orbit Vesta for several months and then move on to another asteroid, Ceres.
The NASA press release mentions that several...
Dear all, I was reading about the Alcubierre drive, and although there's the more recent issue with Hawking radiation potentially frying everything within the warp field that's generated, I was wondering whether there had been any thought given to the possibility of the drive being flung parsecs...
I’ve been searching high and low for an answer to this question. What actually HAPPENS if two engines were to power one drive shaft? I heard back in the days that cars were built this way to break speed records, and I heard present day it is used in tractors, but what increase.
My question...
I'd be interested in some input on a question asked by a friend.
Suppose you are a golf pro & train harder ( weight-training ) & increase your maximum driving ability from 300 yards to 310 yard with same accuracy.
What theoretical advantage is this likely to offer you on the course ...
i want to know how to calcuate Starting and running for motor in 2 post lift for lifting 3.0T.
Actually i have 2 columns having trapezoidal screw rod and nut in each side.
One column is getting drive by motor through pulley belt mechanism.
Another shaft is getting driven by chain at the...
So I have a chain driven system on a tricycle that I am kind of stuck with. the center distance of the two sprockets is 65 inches, and the chain is a 530 series, which has a pitch of 5/8. Now I have seen some sources reference or mention a 60 to 80 maximum of center distance to pitch ratio...
Hi
I have a question, how does inflation drive omega close to 1? I heard Alan Guth say that inflation drives omega close to 1, how is that so?
I hope I can get an answer for this question, I've been looking for it for quite a while.
Homework Statement
A computer disk drive is turned on starting from rest and has constant angular acceleration.
If it took 0.640s for the drive to make its second complete revolution, how long did it take to make the first complete revolution?
Homework Equations...
Hello,
I am seeking assistance with a design project for my engineering design class. We are tasked with developing an educational toy and then assembling a working prototype. Our group decided to develop a small scale electromagnetic roller coaster (Yes we are quite ambitious for a group of...
Homework Statement
A computer hard drive disk with a diameter of 3.5 inches rotates at 7200 rpm. The “read head” is positioned exactly halfway from the axis of rotation to the outer edge of the disk. What is the tangential speed in m/s of a point on the disk under the read head...
Mechanic of Machine -- belt drive system
Homework Statement
An induction motor shaft, runnnig at 1200 rpm, drives a workshop main shaft by a flat belt drive. the diamter of the pulley on the motor shaft is 40cm n the main shaft is 70cm. another pully of diameter 45cm drives a countershaft...
Homework Statement
I am having some trouble with a bicycle chain drive.
I need to find the torque required to have a bicycle travel up an incline.
The bicycle is already moving
Homework Equations
\tau = r*F
Torque is equal to the radius of the wheel, multiplied by the force...
[b]1. Farmers take about 5 mins to lift a 4 gallon bucket of water from a well. They desire to achieve at least a ten minute time increase in the speed at which they can retrieve water from the well. Design a 2 stroke gas engine and transmission system for the winch. The winch itself is assumed...
Lately I have had an idea for a propulsion system. It would use rapid high voltage electrical discharges to create thrust. Now if it was strong enough and made correctly could this be an efficient form of thrust? Would it work?
If the warp drive is shut down either by its destruction or just plain turning it off, what happens? Does the vessel stop? Continue coasting forward? If so how would the time dilation factor at speeds several thousand times the speed of light?
I see a hard disk drive (Q:) in my Computer directory but I don't know what it is. I recently reinstalled Windows and everything is fine except for this. I can't access it, it doesn't appear in Disk Management (when I right-click my computer icon and click Manage).
Here's a screenshot of what...
I didn't really know where to put this.
So a few months ago I was reading about the Alcubierre Drive and became fascinated with the prospects of this theory. However I was disheartened that so many felt it was unattainable due to the need for exotic matter. Recently I came across this...
Homework Statement
iv been given this problem having attmepted it I am stuck when it comes to calculating maximum torque and can't seem to find any equations to help me out.
in a belt drive system the speed of the belt over the pulleys is 170/min. The initial tension of the belt is 400N...
Hello everyone,
In COPD tell me what I'm thinking is right or wrong.
1. O2 decreases and CO2 increases
2.Central chemoreceptors cause hyperventilation
3. Overtime this is not good enough and CO2 increase, and central chemoreceptors become less sensitive.
4. Peripheral chemoreceptors...
Hello All
I am trying to work through a belt drive design and I am confused with a simple concept.
I have a two stage system that has a max torque input of 110N. I want to treat this as "worst case", so I assume that all of the torque is used at the final output flywheel.
The first...
I turned on my computer this morning and it said my computer couldn't start and it began a startup repair thing. The startup repair thing didn't find any problems and it shut down my computer. I turned my computer back on and it started up normally.
Is this an indication my hard drive is...
Attached is the Flexiforce drive circuit. I would like to ask whether I can improve improve the performance of Flexiforce in term of linearity, hysteresis, repeatability, or whatsoever other parameter by change the drive circuit to Wheatstone bridge or instrumentation amplifier?
A car drives over the top of a hill that has a radius of 50m. What maximum speed can teh car have without flying off the road at the top fo the hill?
Soooo I know I'm supposed to treat the hill like a circle...no coefficient of friction given, not sure if I need that though, not really sure...
Help required in order to determine required horsepower to rotate a steel hollow cylinde containing approx. 0.75 tons raw compost. the cyl. o/d is 1.8m., length is 2.8m. The cyl. is rotated about a central axis which is a 3inch o/d steel tube supported on 2 plumber block bearings.The cyl. req.s...
I'm calculating a hypothetical flywheel/IVT/reducer/vehicle scenerio where a flywheel with a moment of inertia of 312 ft2*lb and ang. velocity of 10,000 rpm is connected to 30-in dia. driving tire of a vehicle. The vehicle is 2000 lbs. The flywheel will accelerate the vehicle 0-60 mph in 10...
So it seems they have 16 GB devices. So that's 16 billion bytes probably on some storage element no bigger than a postage stamp and very thin. So that's what 128 billion bits?
So does that mean we have a single memory device, postage-stamp size, with 128 billion transistors? How exactly is...
Hey, guys, do you have the experience of running your daily used apps off a USB drive?
Which is I am now trying to do. But I find that only portable apps can be run like that.
while some apps like MS office are not portably available. How can I do that?
I don't want to "pirate" any movies, but would like to rip DVD's that I bought into my computer so I can put them on my iPod.
Are there ways to rip copy protected DVD's with many chapters/episodes etc?
Which software allows me to do it? Is it legal?
Hey guys,
I working on a bearing design project for a mech. design class. The bearings will be used to support an automotive drive shaft, and I was wondering:
1) if there were any axial (thrust) forces introduced to the shaft by the engine and whether they are negligible or not
2) if...
I understand the general aspects of how a hard disk drives works. I have gone deeper and have learned about the various types of magnetoresistance, both AMR and GMR. I understand the fundamentals of how these systems work compared to older units.
But people keep telling me that the data...
First of all this is not a perpetual motion machine. This type of transit drive works in theory by having two combustion chambers positioned parallel to the spacecraft 's width and perpendicular to its length. Each of the two exhaust nozzles are also positioned parallel to the spacecraft 's...
Homework Statement
Calculate the motor size required to drive shaft A. (shown in schematic 1 diagram)
Drive shaft rotates at 75 Rpm.
Weight of plunger + attachments = 30kg's
Dimensions of plunger given in schematic 2.
Homework Equations
Work done = F x d (distance...
I am working on a vehicle based computer game. The focus right now is to get the internal physics of each drive line component as physically correct as possible. Since a few weeks, I am stuck with a problem that I cannot get past by myself. I have narrowed it down to a specific issue. It should...
The figure1 shows a for the configuration of a four wheel drive vehicle. The body is mounted on a chassis frame through a series of body mounts. The engine and transmission mounting points are also shown. The engine has two front mounts and a single gearbox mount to a body cross member...
There are a couple of products on the market which allow you to attach an external desktop gpu to the laptop and then use an external monitor and play games using the the desktop gpu instead of the weaker gpu in the laptop.
It's a great idea but it means that you must carry an external...
I have 4 p.c.s with SeaGate Barracuda ST3250310AS 250 GB Hard Disks installed in them . These pc.s have 2.7GHz AMD Athalon 64 X2 CPUs & Asus M2N68-AM SE2 Mobos . There is 2 GB DDR2 RAM installed in each of these machines (not dual-channeled) . They also have XFX GeForce 8400GS Cards . However...