A place to explore clear, insightful lessons in Math and Physics, helping you understand the principles that shape our world.

United States
Joined June 2015
Be honest… how many of you have experienced this? 😂
10
67
8
939
56,180
Geometry challenge: Find x =?
4
3
14
938
6 Integrals that Equal
1
18
1
79
2,399
Math Test: No tricks. No calculator. What's your answer?
11
1
10
1,765
Which came first, the chicken or the egg?🤣🤣🤣
5
3
26
2,275
Some Inportant Limits
1
34
2
229
4,485
Math Test: k =? Comment your answer 💯
11
2
16
2,464
Types of Matrices with Examples
57
1
301
5,582
22 or 70: Who’s right?
15
1
22
2,924
Laws of Exponents! ✍️
2
71
3
453
7,975
Find the ladder's length. Comment your answer 💯
35
2
2
26
3,380
Do you think that’s true?
2
6
57
3,081
Noether’s Theorem - This equation reveals that every continuous symmetry in nature, a change you can make to a system without affecting its physical laws, brings about a conservation law. In simple terms, if the universe does not react to a certain change in perspective, it must keep a related physical quantity constant. For example, since the laws of physics remain unchanged no matter when you are (Time Symmetry), energy is conserved. Since the laws are the same regardless of where you are (Space Symmetry), momentum is conserved. Because they stay the same regardless of which way you face (Rotation Symmetry), angular momentum is conserved. This insight shifted our view of the universe. We no longer see conservation as just a series of lucky observations, but as a necessary outcome of the symmetry of space and time...
1
6
66
3,223
Math Test: Can you solve this? 99% can't
40
4
39
4,216
🤔🤔🤔
2
35
3,076
Math Test: x = ? Comment your answer 💯
19
4
2
84
23,191
15 Most Important Mathematical Equations
2
65
348
6,404
How tall is the cat!? Comment your answer 💯
9
1
1
27
3,144