Future Definition and 769 Threads

Hey, sorry I've been asking these hypothetical questions about future advanced civilizations, but I have another question. It's a bit nebulous, and I apologize for that. Can a civilization last forever? And I mean truly forever. Or would something happen, sooner or later, to wipe it out...

I have a 4.0 so far but and flew through Diff EQ, Calc 1-3 with no problemo. However, Linear Algebra is kicking my butt. I'm borderline B/C in the class. If I make this one C and make and make A's and B's the rest of the way, will it hurt me career wise? I'm a Comp. Engineering major.

If A is the observable corresponding to observing the lottery draw, how can I measure the operator A\left(t\right)=\exp\left(i H t/\hbar\right)A\exp\left(-i H t/\hbar\right) :smile: And how to make sure that I can act on the observation of next week lottery draw by submitting the...

The universe’s clock has neither a start nor finish, yet time is finite according to a New Zealand theorist. The theory, which tackles the age-old mystery of the origin of the universe, along with several other problems and paradoxes in cosmology, calls for a new take on our concept of time –...

I just remembered an idea that was presented in one of my math textbooks when I was an undergrad. The basic idea was that if you consider every single atom in the universe, the number of atoms is certainly beyond what the human mind could comprehend, however, the number of those atoms is still...

I have a question regarding the future of civilization in the universe. As we all know, the universe is expanding and, as per the 2nd law of thermodynamics, entropy is increasing. However, could a future civilization find a way to harness used energy (ie heat dissipated from resistors)? Also...

HI I am hesitating now about CHEMICAL ENGINEERING, since it has so many applications, NUCLEAR , beacuse I am kind of interested in it, and maybe it will be HUGE in about 10 years or so, when there is no oil :D and PETROLEUM , because it has the highest salaries! WHAT TO CHOOSE? I am at...

I am not a student of astronomy or physics, or any sciences for that matter. But I do have some things I wish to ask the scientific community here in the hopes of better understanding all of your viewpoints as to the title of this topic. First question: a. Assume that Earth is about to face a...

hey To a lot of us it sounds evident that the future is predefined, that we know the future will only be one way, even through we cannot really predict how it would be (infinitely long equations, ect, an infinity of variables). Ok, its logic , but i need to find clear arguments to support that...

so now I'm at university and taking my first real physics undergrad classes: intermediate lab and optics and guess what, i dislike em both! this past summer i also did two internships, one in experiment and one in theory. the experiment one was admittedly very dinky; it was at a engineering...

I am entering my senior year of college as a computer science major, but have recently made the realization that my passion is physics more specifically astrophysics. I have not a clue how to proceed from this point, if I change my major now it would be equivalent to losing 3 years of work, and...

I need advice. If I could PM someone whose wise and knows a thing or two about life, please let me know. I probably need a shrink.

Hi don't know if I am in the right area but i have a random question about future spacecraft and the speed they travel. the rumor of ufo's are known the be a flat sphere shape, why don't the people who design the future jets try designing the shape a little bit like a ufo instead of make the...

I'm a 4th year physics student, I'm in a European Credit System ( Finishing my M1 degree ). Wishing to continue my studies in Subatomic-Particle Physics, for some complex reason ( will take time to explain ) I have to stop one year before continuing my studies in physics ( to get my M2 degree...

Oh no, not another global warming thread! But seriously, I read that CO2 accounts for ~20% of the greenhouse effect on Earth, we are undoubtedly raising the amount of this (and other) greenhouse gases in the atmosphere. The greenhouse effect is very important in determining the lower...

What top 5 future jobs do you think are going to rack in the money in the next 5 to 10 years? I'm guessing Biotechnology at top 3, and some type of computer job for the next 2.

hi..i want to do MSc in physics and have just finished my Bsc in the same.. i wrote JEST N IIT but did nt clear either.. say if i don't get anywhere this year . would cld i do.?cld u pls help me with some alternatives.

http://math.ucr.edu/home/baez/week252.html includes a concise timeline of the solar system future ===quote Baez=== * In 1.1 billion years the Sun will become 10% brighter than now, and the Earth's atmosphere will dry out. * In 3 billion years the Andromeda Galaxy will collide with our...

[FONT="Georgia"]Hello guys I'm just wondering about an optical concept in a fictional movie I've watched. In the movie, there was a machine invented to be able to see someone’s future. The optical concept about this machine is the power of lenses which enable the user to view the light that came...

Hi. I would like to discuss this: http://www.sciencedaily.com/releases/2007/05/070524094126.htm "Now, physicists Lawrence Krauss from Case Western Reserve University and Robert J. Scherrer from Vanderbilt University predict that trillions of years into the future, the information that...

I looked briefly at the thread herein regarding "Simulating the universe" but it did not appear to involve the future -- just evaluating validity of different theories leading to present. Has anyone run any simulation into the future, say 100 billion years? To see for example what...

Just thought some people here would be interested in this article... http://www.smellybean.com/link.jsp?UniqNumber=3891

Abraham Loeb is one of the top people in his profession. Interesting that he should be using computer sims to study something very close to home like this. http://arxiv.org/abs/0705.1170 The Collision Between The Milky Way And Andromeda T.J. Cox, Abraham Loeb (Harvard/CfA) submitted to...

At http://en.wikipedia.org/wiki/Spacetime#Historical_origin I read the following quote: Wouldn't this imply that the universe (respectively spacetime) is actually static and that the present doesn't really exist except for our consciousness? And wouldn't this also imply that in such a...

Given that almost all of the fuel waste from LWRs is potentially useable with future fast breeder reactor technology with periodic reprocessing, rather than planning to dispose of this waste we should instead be storing it for future use. The goal should be to design reactors today to produce...

sorry for stealing the video link/topic cromagnum, but its a vary interesting topic and yours got locked :frown: "blackwater USA has become one of the most powerful private actors in the so called war on terror. it provides the bush administration with an extraordinary amount of political...

My teeth hurt. And yes, I do brush them, and I'd like to say I spend a good amount of time doing so. I guess what I mean to say is my gums hurt since my teeth don't actually feel things. I'm going to visit the dentist next week...

If the future is undetermined (unobserved), would the past be certain (observable)?

Hello, I am a third year physics student (at UBC in Canada) and I am wondering what are my options for the future. My second year average was something like 52% (I was mildly depressed at the time) and have boosted my grades over the year to just under 80%. I am looking to start getting some...

I don't know much about nonlinear optics, but does doing a PhD in this field give you a chance in landing a job in the industry afterwards? i.e what does the job market look like? I always kinda thought that nonlinear optics was a very mature field and hence the opportunity to do exciting...

I am a 3rd year mechanical engineering major currently working in an internship for a power company. My company recently sold off their wind and hydro generating plants because they could not compete with the coal plants. We now have only coal and gas/oil plants. I know that I could continue...

http://www.ejhs.org/volume2/history.htm

Let us assume that a body is to travel from point A to point E, with B, C, D being intermediate points. The points between A and E are equally spaced apart by a distance of 10 km. The body is SUPPOSED to travel AB, BC, CD, DE with speeds of 10 kmph, 20 kmph, 30 kmph, 40 kmph...

can someone please point me to a cite that states the dates and locations of future solar eclipses. thx

the "future" in GR In GR, is all of time already contained in ST and we're just moving through it? this seems to be the only way to explain the fact that for different observers time passes at different speeds. is this correct? (this isn't a philisofic question)

Anyone know the future uses of x rays within a hospital? or what the future adaptations are to make it less harmful etc? help! xx

Hey yall, just wondering what the future of weapons will look like. I was thinking a lot of emp type stuff and wanted to know what a defense is to emp. What kind of bombs will they use, what kind of ground weapons? Will they use biological weapons, what will be the tactics like how will they win...

This is my last year in school (17 years old), so i was deciding my future with my dad and we fighted about my career when i told him that i want to study physics, and he sayd that you can't cause you will not earn money, and stuff like that. So he impose that i must study administration, lol...

I heard recently that Wheat (grain) production decreased due to drought in Australia and other areas, e.g. midwest US. Several countries have curtailed or reduced export and in some cases are now importing. At the same time, the cost of production has increased, in part due to increased energy...

i don noe were 2 find the webside o place that i can find out the list of the subject or faculties which i can study in the future??nw i am taking the subject of physics, mathematics, and chemistry..can anybody suggest wat subject is suitable for me??

What will soon – within 50 years or less - be history. I have a lifelong habit of trying to guess how, why, when, and what customs, organizations, significant problems, familiar activities, devices, structures, or technology commonly used or seen today, will disappear as a function of...

Greetings, in the physics forum we've had a discussion on how to make a person invisible. Many people suggested complicated invisibility suits which I won't get into. I had an idea of how we could possibly biologically engineer a human body to be invisible without the need for a suit. I'm...

Hello. It's been a long time since posting. I'm a layman who is intrigued but very confused about something I read recently. This article in Discover Magazine says: "We now know that mathematical truths cannot fall into predictable patterns and that perfect mathematical systems (ones that...

Someone says "live every moment as if you are going to die tomorrow or in a second" while someone says "if you don't have a plan, you don't have a life" Do you live and try to enjoy this moment for its own sake more or for the future more? By the way, in case you may find it helpfull to your...

I plan on entering into an engineering program net year as a first year entrant. My grades should get me into the engineering program if I apply for first year entry. But should I do this? I only recently (grade 11) started taking my school work as seriously as I do now. My marks are in the...

Why cannot we see the future? You see, all the laws of relativity, quantum mechanics and the other physics interaction laws are time-reversible Then why cannot we see the future as well? I mean, when I look at the sky, I'm supposed to see ALL the stars that have zero-space-time-interval with...

How is estimating the probability that a future event might happen different from estimating the probability that a past event might have happened?

could this be future free energy? http://www.boinc.ch/~sleepsleep/blend/fe.png" when the bowling ball drops down from left (air) tube, we would use its energy (due to gravity) to pull another bowling ball in (water) tube. if u see the graphic, there is a "air" pad that to make the...

Lets say we mastered near lightspeed travel and instantaneous communication using quantum teleportation. Then we send the spaceship off to someplace 1 lightyear away. It turns around and for a brief moment travels twords Earth at near lightspeed. During this moment the spaceship asks Earth how...

A few weeks ago NASA announced it's next generation of rockets. Based on The APollo design it will take us to orbit, ,the space station,and even The Moon. My questions are, do we want to do this? This would be taking us backwards since it's based on APollo technology. Is it reusable? Will it...