Search found 7 matches

by Tevin Chung from South Korea
Sun Apr 16, 2017 5:07 am UTC
Forum: Science
Topic: Miscellaneous Science Questions
Replies: 2863
Views: 589236

Qustion about ATP

While I learned about ATP and process of photosynthesis at school, (by the way, I'm highschool kid) I found that energy efficiency of ATP is almost equal to that of carnot heat engine's. I wonder that if we if we applied this ATP to energy engines like batteries, wouldn't it be possible to create a ...
by Tevin Chung from South Korea
Sun Apr 16, 2017 4:55 am UTC
Forum: Mathematics
Topic: Qustion about 3D
Replies: 3
Views: 1517

Qustion about 3D

What is the best way to represent 3D in 2D?

There is a lot of ways to daw 3D in 2D and which one is the best?
by Tevin Chung from South Korea
Wed Apr 12, 2017 3:02 pm UTC
Forum: Science
Topic: 2 chemistry questions
Replies: 0
Views: 2600

2 chemistry questions

The next two questions are questions I took today as a mock test for Korean Scholastic Aptitude Test. Yeah, I got both questions wrong, I'll translate the following two questions to you and show them to you. Let's see how you can solve them in 6 minutes (Actually, this is also a time consuming gift)...
by Tevin Chung from South Korea
Tue Apr 11, 2017 4:14 am UTC
Forum: Science
Topic: About Sin-gi-jeon
Replies: 3
Views: 1842

About Sin-gi-jeon

Singijeon(신기전) is a Korean traditional weapon.(It is known as Hwa-cha in other countries.) It was created in 1440 by King Sejong the Great and during the reign of King Sejong, Korea's scientific technology was superior to any other country. Singijeon is a automatic arrow launch system, which is a pr...
by Tevin Chung from South Korea
Mon Apr 10, 2017 7:41 am UTC
Forum: Science
Topic: Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?
Replies: 8
Views: 1990

Re: Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?

Wait...
I didn't write what I intended.
How could I be so stupid?
Okey.. calm down...
What I tried to write is in the next picture.
by Tevin Chung from South Korea
Sun Apr 09, 2017 2:16 pm UTC
Forum: Science
Topic: Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?
Replies: 8
Views: 1990

Re: Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?

If you take some surface layer of the northern hemisphere and distribute it over the southern hemisphere, all you do is shift the equator a bit relative to the continent outlines. You don't change the fact that Earth is a rotating sphere. The core is now slightly off-center, it will shift a bit aft...
by Tevin Chung from South Korea
Sat Apr 08, 2017 10:53 am UTC
Forum: Science
Topic: Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?
Replies: 8
Views: 1990

Does the geographical distribution of the northern and southern hemispheres affect the rotation of the Earth?

Most of all, most of the land is in the Northern Hemisphere, and the vast majority of the big cities are in the Northern Hemisphere, too. Does this fact have a huge impact on the Earth's rotation? If so, if everybody moved to the southern hemisphere (including everything they built), would it change...

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