Colors!

I plan to combine two different ideas to give a totally different perspective to colors and how we see them. First, the two things that will set out the idea.

We can see because there is light! Our eyes capture the light that reflects from the things around us and send some signals to the brain via the optic nerve. Once these signals reach brain, we can see. Click here to verify this yourself! (This definitely implies that we will not be able to see things that don't reflect light. But this is not my topic of discussion here!)

Everything in the universe is 'vibrating'. That means the atoms and sub-atomic particles in all the objects vibrate at certain frequency which is their natural frequency. (Sorry couldn't find the appropriate search terms so that I could give any reference here.)

Combining these two ideas, would it mean that the particles vibrate at a certain frequency to produce vision of a color. Is that how a chameleon changes his color? By changing the vibration frequency of his skin particles?

Space travel

For ancient man or neanderthal, vastness of the Earth was probably unknown. He probably knew that the land under his feet is huge. But how huge? He had no idea. Apart from that scaling those distances on known ways of transports was unimaginable. By no stretch of thought he could have imagined that he would go round the earth in his lifetime... neither did he do that. Air travel was just a figment of his imagination. But today it is very much real.

Today we are neanderthals with respect to space travel. With theory of relativity, easy interstellar travel seems impossible by any stretch of imagination. But the future man will invent the "air crafts" to scale these distances very easily. In time after that, man will feel difficult to imagine a life without space travel in the same way today we see life impossible without a.... the list is so long... TV? Cell phone? Cars? You name it!

The Earth or Us?

We, humans, are making utmost effort to make the Earth unlivable. I am surprised that we don't realize it is not Earth that we are killing, but ourselves. We still say, "Save the Earth!" But Earth will still go round the Sun even if there is no environment left covering it. It is us who will be extinct in that scenario.

Do no world leaders, who only ask other countries to cut down on emissions without first setting the example themselves, realize all this? By not committing to reduce the emissions they are not just killing themselves but the entire human race! Are the leaders ready to take responsibility?