Another excellent video. The only thing that I am not totally comfortable with is the use of decimals with inches on the third example. I think if a person tried to actually cut a 10 inch length at 5.4 inches, they would be confused as to where to cut. A suggestion would have been to use centimeters rather than inches for the gold string.
Brilliant, as always. Q: How many videos would it take to get to understanding the mathematical proof that time slows down when we approach the speed of light?
The theory of relativity cannot be mathematically “proven” but it can be shown to be logically consistent with the fact that the speed of light appears to be the same in all reference frames regardless of their speed relative to the light source. In Special Relativity, the equations for time dilation and length contraction can be worked out using the Pythagorean theorem and some simple algebra. On the other hand, General Relativity requires much more advanced mathematical techniques such as tensor calculus.
You know that an easier way of simplifying is just moving the term to the other side, while changing it's + or - sign (or it's position in the numerator/denominator if fractions are considered). All of this long process of subtracting x from z to get 0 would be omitted.
He does it this way because it's what you're really doing when "moving the term to the other side". You only should "move terms" after you understand what you're really doing.
***** Obviously, but we are already in lecture 27 - if somebody understands graphing linear equations, he must have mastered simplifying equations by now ;)
@ Clinton Sam ; must be 50 because he was speaking about total age. He was converting $ unit to age unit first. While your solution is not wrong, it uses different units at initial equation. Your equation is solving the problem in one equation while the video used 2 equations with the first unexplained one being the unit conversion from $ to age.
you made linear equations easier for me.
After many searches, i found the batter explanation here.
Another excellent video. The only thing that I am not totally comfortable with is the use of decimals with inches on the third example. I think if a person tried to actually cut a 10 inch length at 5.4 inches, they would be confused as to where to cut. A suggestion would have been to use centimeters rather than inches for the gold string.
Yup, mixing the imperial system with decimals never ends well...
So, at the end, we have left over from that wire. :D
Brilliant, as always. Q: How many videos would it take to get to understanding the mathematical proof that time slows down when we approach the speed of light?
The theory of relativity cannot be mathematically “proven” but it can be shown to be logically consistent with the fact that the speed of light appears to be the same in all reference frames regardless of their speed relative to the light source. In Special Relativity, the equations for time dilation and length contraction can be worked out using the Pythagorean theorem and some simple algebra. On the other hand, General Relativity requires much more advanced mathematical techniques such as tensor calculus.
Please continue this sereis
You know that an easier way of simplifying is just moving the term to the other side, while changing it's + or - sign (or it's position in the numerator/denominator if fractions are considered). All of this long process of subtracting x from z to get 0 would be omitted.
He does it this way because it's what you're really doing when "moving the term to the other side". You only should "move terms" after you understand what you're really doing.
*****
Obviously, but we are already in lecture 27 - if somebody understands graphing linear equations, he must have mastered simplifying equations by now ;)
MegaMementoMori Well, that may be true, I didn't take into account all the things that have been explained in previous lectures >-
@ Clinton Sam ; must be 50 because he was speaking about total age. He was converting $ unit to age unit first. While your solution is not wrong, it uses different units at initial equation. Your equation is solving the problem in one equation while the video used 2 equations with the first unexplained one being the unit conversion from $ to age.
هنتع
The title of this video should be "Solving Problems with *Literal* Equations"
thank u very much for this video
I only wish my brain could be rewired to work this way, its so frustrating you know?
noice.