So I was bored in class today so I was looking around and saw this mirror and though "Do mirrors reflect in exact time?" By that I mean if you were about five feet away from a mirror and move so it reflects in the mirror, does that happen at the exact time you move. I thought and remembered that it would be the light traveling to mirror creating the reflection so there would be a small difference in your movement and the reflection but at least that's what I think. So just help me out here because I'm hella confused.
Science NS'ers
- Thread starter nochill
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stinky_cheese
Active member
you think too much
airplaneface
Member
Yes, but no at the same time. If you are 5 meters (Little over 5 yards) away from a mirror then the image of you would take 10 meters to get to your eye. Light moves at 800,000,000 meters per second. So 5/300,000,000 is about 0.000000017 seconds. Which is basically zero.
Yes, we could theoretically see dinosaurs in a mirror, but only if it was how ever many years ago dinosaurs existed light years-away. For example, if dinosaurs existed 1 billion (1,000,000,000) years ago then we would need a mirror 500,000,000 light-years away to see them. 500 million years out and 500 million back (assuming we can see this mirror). A light-year is a unit of distance, it is the distance light travels in a year. So one light year would be (365 days)*(24 hours/day)*(60 hours/day)*(60 seconds/hour)*(300,000,000 meters/second) which is about 25,000,000,000,000,000 meters/light-year*500,000,000 light-years comes out to be 12,500,000,000,000,000,000,000,000 meters or 7,770,000,000,000,000,000,000 Miles away.
The more you know!
Yes, we could theoretically see dinosaurs in a mirror, but only if it was how ever many years ago dinosaurs existed light years-away. For example, if dinosaurs existed 1 billion (1,000,000,000) years ago then we would need a mirror 500,000,000 light-years away to see them. 500 million years out and 500 million back (assuming we can see this mirror). A light-year is a unit of distance, it is the distance light travels in a year. So one light year would be (365 days)*(24 hours/day)*(60 hours/day)*(60 seconds/hour)*(300,000,000 meters/second) which is about 25,000,000,000,000,000 meters/light-year*500,000,000 light-years comes out to be 12,500,000,000,000,000,000,000,000 meters or 7,770,000,000,000,000,000,000 Miles away.
The more you know!
airplaneface
Member
Also, how crazy small are we thinking about that kind of stuff.
GregFlik
Member
Wanna get real science and nerdy and ensure that your mind will be blown?
The Flash, who is a Superhero known for his speed is an absurd amount of speed in one person. He has a direct connection to the Speed Force, which basically allows him to move as fast as he needs to. He once moved every single citizen of an entire city 50 miles away from the epicenter of a nuke in 10 picoseconds.
What is a picosecond you ask?
1 picosecond = 1.0 × 10-12 second
That means 1 picosecond is .0000000000001 of a second (I may have missed a zero or added one, I'm tired).
So in closing, the Flash could beat his own reflection.
The Flash, who is a Superhero known for his speed is an absurd amount of speed in one person. He has a direct connection to the Speed Force, which basically allows him to move as fast as he needs to. He once moved every single citizen of an entire city 50 miles away from the epicenter of a nuke in 10 picoseconds.
What is a picosecond you ask?
1 picosecond = 1.0 × 10-12 second
That means 1 picosecond is .0000000000001 of a second (I may have missed a zero or added one, I'm tired).
So in closing, the Flash could beat his own reflection.
safety.third
Member
13402305:Left_Brothers said:
ahem
airplaneface
Member
13402400:agnarski said:
whoops, typo, but I used the right value later on. When I was typing I was thinking 3*10^8 and accedently wrote 8*10^8, silly me.
