Sorry, I was actually just saying what my Geology professor told me. He said that SOME Geologists believe the Earth's magnetic field flips every 100,000 years or so. I was not trying to imply that the Earth's magnetic field actually does flip that fast, just that it is the opinion of at least a...
I am not currently taking a Geometry class, but I've always been interested in Geometry and I'm now looking for a good College-Level Geometry book. All the ones I have checked out from my school's library claim to be College-Level, but mostly talk about subjects I remember learning about in High...
I assume he's referring to the evidence that the Earth's magnetic field might currently be reversing, since measurements over the last 100 years have shown a drop in the strength of the Earth's magnetic field of about 5% (I remember it being about 5%. If someone has a more exact value, feel free...
We are still a long ways away from being able to colonize space, at least in the sense that I think we are referring to. We might be able to make a few stations in orbit around the Earth in the relatively near future, but even those would likely be dependent on the Earth for a long while, and...
Yes, space colonization would be a huge risk in that sense, as we wouldn't have the luxury of knowing that we could just leave one settlement or colony and go to another through the vacuum of space or the toxic atmosphere of a distant planet. If and when we colonize space, I believe it will have...
Well, here are some reasons for space EXPLORATION (not necessarily colonization), in my opinion.
1.) There are several things in space that can help with problems here on Earth, such as studying the greenhouse effects on other planets to get a better picture of what's going on with our own.
2.)...
I have seen a lot of rocks like that in Missouri. I've noticed they tend to be, or come from, large boulders. Since they're sedimentary and found in the midwest, I assume they were probably formed during the Mississippian Period, when the midwest was underwater. That's all I know about them so...
I can't tell if it's just the angle the picture is taken from, but it looks like the holes are more concentrated in certain areas than others. Is that an accurate assessment or am I just imagining things?
True, some people can't do Engineering ALL the time. I have hobbies other than Engineering as well. What I was trying to suggest (though re-reading I see I didn't make it very clear) is that Engineering and Physics are such broad fields that you can incorporate them into your other hobbies as...
To answer briefly (and a little simplified) you would want to simplify a formula if you expect you or someone else may want to use that formula again later. Obviously if you are going to be using a formula for 100 different values, it could save a lot of time by simplifying and removing any...
This is, to me, an interesting question with more things to consider than might be immediately apparent. I'm currently in my 4th year of college, so I don't have the advantage of much hindsight on my years at college yet, but this is what I've figured out from the time I have spent here:
It...
I am certainly not an expert in Planck measurements (and I really doubt there is such a thing as a Planck expert), but I'm fairly certain there are 2 different measurements called Planck Length and Planck Area. Planck Area is a smaller unit than Planck length for the exact reason you are...