jnfoage:

Gbam, two points.

Oya nah...thanks boss..One more point ABI??

Left and right are the only directions which are described relative to the observer. Up and down (and north, south etc) are independent of whichever way you're facing. When you look in the mirror, up, down, east and west are still in the same place. But you read printed text from left to right - not east to west - hence the problem with 'mirror writing'.

Left and right are the only directions which are described relative to the observer. Up and down (and north, south etc) are independent of whichever way you're facing. When you look in the mirror, up, down, east and west are still in the same place. But you read printed text from left to right - not east to west - hence the problem with 'mirror writing'.

femo86:


Oya nah...thanks boss

But you have just this two points.

it doesn't reverse left or right

Let's be clear: there is only one direction singled out for a flat mirror, being the direction perpendicular to its surface. This direction is the only one that it can "know" anything about, and that direction does get reversed by a mirror: that is, if you point an arrow toward the mirror and precisely perpendicular to it, the image is an arrow pointing in the opposite direction. So mirrors reverse in-out, and that's all they can ever do. Anything else that seems to happen is a result of our psychology.

jnfoage:

But you have just this two points.

Op I no gt am!?

it reflect the light that comes across it

jnfoage:
This was a question a math professor of mine would ask physics students at their Ph.D. oral exam, but it doesn’t really involve any advanced physics. The question: when we look in a mirror, left and right are swapped - that is, our image’s left hand is our right hand, etc. Why aren’t up and down swapped?

Whoever answers this correctly has two points.

We call it a left right reversal because we consider the image to be 'us' only ,who has reached behind the mirror & rotated by 180 degrees from current orientation in say XY plane, keeping the Z constant. But in the same way if we consider ourselves moving in YZ axis from over the mirror like an astronaut & reaching behind the mirror, our head should have been below & feet upwards, which is not there...therefore it has reversed in vertical also. Finally the question has arisen due to the fact that since human can only walk on earth ,there imagination does not permit them to fly to the back of the mirror.


in other words, actually it does. Follow these steps, spread your arms horizontally in front of a mirror. now bend your body 90 degrees from your waist so that left hand touches ground & right hand indicates the sky. Now observe in the mirror, your image is touching the ground with right hand.the image is reversing vertically also.

doughziay:
Left and right are the only directions
which are described relative to the
observer. Up and down (and north, south
etc) are independent of whichever way
you're facing. When you look in the
mirror, up, down, east and west are still
in the same place. But you read printed
text from left to right - not east to west -
hence the problem with 'mirror writing'.

WTF!!!

jnfoage:

But you have just this two points.

Ehn ehn...I was the 2nd person to answer the 1000 question....the timeline showed I answered a min after the first guy

jnfoage:
This was a question a math professor of mine would ask physics students at their Ph.D. oral exam, but it doesn’t really involve any advanced physics. The question: when we look in a mirror, left and right are swapped - that is, our image’s left hand is our right hand, etc. Why aren’t up and down swapped?

Whoever answers this correctly has two points.

Op abeg check my ansa I get an now

DrayZee:
WTF!!!

Dey there

jnfoage:
This was a question a math professor of mine would ask physics students at their Ph.D. oral exam, but it doesn’t really involve any advanced physics. The question: when we look in a mirror, left and right are swapped - that is, our image’s left hand is our right hand, etc. Why aren’t up and down swapped?

Whoever answers this correctly has two points.

Answer:

your mirror image hasn't been swapped, but inverted along a third dimension, like a glove being turned inside out.

doughziay:


Dey there

I didn't say you were wrong.

I know what I meant.

next question sir

Next question pls...

wen is d next question

jnfoage:
This was a question a math professor of mine would ask physics students at their Ph.D. oral exam, but it doesn’t really involve any advanced physics. The question: when we look in a mirror, left and right are swapped - that is, our image’s left hand is our right hand, etc. Why aren’t up and down swapped?

Whoever answers this correctly has two points.

The only directions are left and right. Chaii...glo network y

The hustle is real like who wants to be a millionaire fastest finger

Men just dey refresh page anyhow

doughziay:
Men just dey refresh page anyhow

Funny you

Pls, one pointers remind me through my quote of acknowledgement, no time to go through the thread again.

Let's finish with the 5 of them before moving to the next four award winners.

100k budgeted, 10k gone, remaining 90, all must be claimed tonight.

jnfoage:
Pls, one pointers remind me through my quote of acknowledgement, no time to go through the thread again.

Let's finish with the 5 of them before moving to the next four award winners.

100k budgeted, 10k gone, remaining 90, all must be claimed tonight.

Here

doughziay:
Men just dey refresh page anyhow

same here oo
any time weh i no refresh na him dem deh come post the question

Luffy107:
Here

One, 4 more.

jnfoage:
Pls, one pointers remind me through my quote of acknowledgement, no time to go through the thread again.

Let's finish with the 5 of them before moving to the next four award winners.

100k budgeted, 10k gone, remaining 90, all must be claimed tonight.

present

Op..just for clarity please...I had 2 points for the last question. However, for the shop owner question, I was the 2nd person to get it right? I should have a point for that as well...

jnfoage:
Pls, one pointers remind me through my quote of acknowledgement, no time to go through the thread again.

Let's finish with the 5 of them before moving to the next four award winners.

100k budgeted, 10k gone, remaining 90, all must be claimed tonight.

am one of the one pointer sir

Present

MAIZAMANI:
present

Two, three more.

jnfoage:
Pls, one pointers remind me through my quote of acknowledgement, no time to go through the thread again.

Let's finish with the 5 of them before moving to the next four award winners.

100k budgeted, 10k gone, remaining 90, all must be claimed tonight.

here