Recent content by Vi Nguyen

How do I recognize real men, women, and children are chatting on the social media in real time? Or how can I recognize it is a machine generated or real people are talking? I want to know real time people are chatting vs. machine generator or someone manipulate.

I heard of the Earth axial tilt or obliquity and the Earth circle around the sun accordingly to the Earth axial tilt. But I never heard of the sun has the reflection of the Earth axial tilt. I am curious.

By the way, I got the image from wiki link below: https://en.wikipedia.org/wiki/Earth%27s_orbit

You are right, I cropped the picture, that is why you can't see clearly the two trees on each side as a reference. The full picture is as show below:

The reason I am thinking that I am seeing the celestial pole in the picture that I took, because when I compare my picture with wiki picture, this is what I am seeing. I took the picture with my camera that has two lens. At the moment, I point straight at the sun to take this picture. So as it...

I took this picture on 02/21/2010, and I saw a line that I called it celestial pole. But I am not sure if that is what I see in the picture I took. I looked up wiki and I found that picture that the celestial pole is on the other side of the line that I see on my picture. How do I explain it...

I took this picture on 04/18/2010, and I thought that I see the sun circumference. I just wonder can I calculate the physics and mathematics equations to figure out what is it that I am seeing in this picture. I stood from Earth standpoint, and I took this picture at noon time of the day.

Solve for x: 10^(x) = 105 e^(x) = 100 3^(2x) = 50 0.5*e^(-x) = 0.2 ln x^(2) = 6 5 ln 3x = 12

thanks

Rewrite in logarithmic form: e^(-1) = c

Thanks

Rewrite in exponential form: Log(6) 1294 = 4 Log(w) v = t Ln(1/4) = x Evaluate Log(4) 64 = ? Log(16) 4 = ?

how to solve this problem Find sigma(210)\sigma\sigma