Real world Definition and 121 Threads

Why is mathematics - a language developed through reasoning - so effective when it comes to describing the empirical world? Could either of the following have anything to do with this phenomenon: - the brains that conduct and observe the empirical experiments are naturally the same type of...

Hey, is there anyone who can provide 2 graphical examples of either logarithmic or exponential functions relating to the real world. I've looked in many places and have given up. Please help. Thanks in advance

It is with mixed success that I finish my third attempt at what I hope is the world's first real-world (i.e. not computer-rendered) tesseract, or hypercube. It started last spring while I was bored in a job-hunting class. I was studying my Meyer-Briggs results, and the chart that divides all...

Many carpenters have either seen or heard of someone who could calculate rafter lengths in their head. Perhaps these people are just gifted number crunchers, but I want to crack the mystery behind it. That's why I’m calling on you mathematical geniuses for help. Are there any tricks to...

people i an doing a research on this topic "the importance of curves sketching in real world" i need some answer but i am a bit tied up so can i have some help please:

Hi! I'm new here and trying to get some help solving a problem I have. It's a real problem, but for discussion purposes I've simplified it as such: Problem Description: A large tank is initially full of pure distilled water at volume of 5,000 cubic feet (cf) 50% pure vinegar is being...

What does energy really mean in the real world? Or it is just a mathematical tool?

This may be off topic, but a lot of smart and practical people hang out here so maybe someone can help. I need to find the height of my chimny in my back yard. I'm not wild about heights, so I'd rather not get out a long tape measure and a longer ladder to climb to the top. All the word...

I'm a physics undergrad who's had some experience with Java and Fortran and a little bit with C++. I've only taken one computer science course which taught me the basics of Java, so I've been somewhat shielded from other programmers and from programming as it's done in the "real world". I have...

Hi, new user here, just had to ask this question though to settle a debate! :) What I'm saying is that for a collision between two vehicles with one stationary and the other traveling at 10mph the damage will be less than if one vehicle was traveling at 50mph and the other at 60mph - same 10mph...

I have to write a little report on an industry that uses a chemical reaction(s) and basically answer these questions (skip down to the bottom if you just want to see my quick question):~~~~~~~~~~ 1. Identify chemical reactions upon which the industry relies. 2.Write the chemical equation...

maybe it is an easy question but i confuse a bit wave func of free particle is A exp(ikx) and probability over all space is A^2 so it is possible to find this particle everywhere Does it mean "there exist no free particle in real world" ?

If anyones ever heard of it... its a multi-barreled system that can fire upwards of 1,000,000 rounds per minute. It can be fitted with different types of barrels to fire anything from bullets to 40mm grenades. So what are the real world applications? They say they can setup a few and cover a...

Quantum Physics and the "Real" World Could it be argued that the four energy levels of an atom relate to states of matter in our macro world? For example something is a solid, then you bump it up an energy level and it becomes liquid, bump it up again and it becomes gas, again and it becomes...

Hi, I need to find the mass density and the number of atoms in a building that has a volume of 53306 cm^3. I know the building is made out of calcium carbonate, but I have no idea how to go about doing it. Do I need to assume the mass of the builing and find its mass density using D=M/V? What...

I've been kicking myself trying to think of a few real world applications of cubic equations (and x^4 quintive?). Can anyone give me a few examples? Thanks, Jeremy

are complex numbers part of the "real" world The square root of -1 is used a lot in physics. But how does it relate to what,I suspect,most people would regard as the real world i.e real numbers (for example we speak of real probabilities and not imaginary probabilities - real probabilities...

hey guys, i failed calc last year and got a bad grade in physics. But i still want to learn about both. My question is about deratives. I have yet to find a real world example and how to apply the formulas to it. I've hurd that the curvature (dunno if that's a word) of on/off freeway ramps...

Dreams flow illogicly, odd and inconsistent things often occur within them. We only notice this, however, when we are awake; during sleep the inconsistencies and paradoxes merge together and remain undetected- which one might consider nonexistant. We base our science and understanding on...

The team I am a member of is currently in the process of installing a new steering mirrors in our lasers. The mirrors are about 15mm in Diameter and 7mm thick. They are first surface mirrors coated for a 355nm laser beam with 45deg incidence. 355nm is in the UV portion of the spectrum and...

Hi,there.. I do need your help...I'm doing my test during this spring break. Many current electrical power plants (especially in the eastern U.S.)use coal as the fuel to heat water at 25 degrees Celsius into steam at 190 degrees Celsius,which then expands and drives a turbine generator. The...