Einstein, twenty-six years old, only three years away from crude privation, still a patent examiner, published in the Annalen der Physik in 1905 five papers on entirely different subjects. Three of them were among the greatest in the history of physics. One, very simple, gave the quantum explanation of the photoelectric effect—it was this work for which, sixteen years later, he was awarded the Nobel prize. Another dealt with the phenomenon of Brownian motion, the apparently erratic movement of tiny particles suspended in a liquid: Einstein showed that these movements satisfied a clear statistical law. This was like a conjuring trick, easy when explained: before it, decent scientists could still doubt the concrete existence of atoms and molecules: this paper was as near to a direct proof of their concreteness as a theoretician could give. The third paper was the special theory of relativity, which quietly amalgamated space, time, and matter into one fundamental unity. This last paper contains no references and quotes to authority. All of them are written in a style unlike any other theoretical physicist's. They contain very little mathematics. There is a good deal of verbal commentary. The conclusions, the bizarre conclusions, emerge as though with the greatest of ease: the reasoning is unbreakable. It looks as though he had reached the conclusions by pure thought, unaided, without listening to the opinions of others. To a surprisingly large extent, that is precisely what he had done.
Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there-on a mote of dust suspended in a sunbeam.The Earth is a very small stage in a vast cosmic arena. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot.Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.
His laws changed all of physics and astronomy. His laws made it possible to calculate the mass of the sun and planets. The way it's done is immensely beautiful. If you know the orbital period of any planet, say, Jupiter or the Earth and you know its distance to the Sun; you can calculate the mass of the Sun. Doesn't this sound like magic?We can carry this one step further - if you know the orbital period of one of Jupiter's bright moons, discovered by Galileo in 1609, and you know the distance between Jupiter and that moon, you can calculate the mass of Jupiter. Therefore, if you know the orbital period of the moon around the Earth (it's 27.32 days), and you know the mean distance between the Earth and the moon (it's about 200,039 miles), then you can calculate to a high degree of accuracy the mass of the Earth. … But Newton's laws reach far beyond our solar system. They dictate and explain the motion of stars, binary stars, star clusters, galaxies and even clusters of galaxies. And Newton's laws deserve credit for the 20th century discovery of what we call dark matter. His laws are beautiful. Breathtakingly simple and incredibly powerful at the same time. They explain so much and the range of phenomena they clarify is mind boggling. By bringing together the physics of motion, of interaction between objects and of planetary movements, Newton brought a new kind of order to astronomical measurements, showing how, what had been a jumble of confused observations made through the centuries were all interconnected.
Dear Neil Armstrong,I write this to you as she sleeps down the hall. I need answers I think only you might have. When you were a boy, and space was simple science fiction, when flying was merely a daydream between periods of History and Physics, when gifts of moon dust to the one you loved could only be wrapped in your imagination.. Before the world knew your name; before it was a destination in the sky.. What was the moon like from your back yard?Your arm, strong warm and wrapped under her hair both of you gazing up from your back porch summers before your distant journey. But upon landing on the moon, as the earth rose over the sea of tranquility, did you look for her? What was it like to see our planet, and know that everything, all you could be, all you could ever love and long for.. was just floating before you. Did you write her name in the dirt when the cameras weren't looking? Surrounding both your initials with a heart for alien life to study millions of years from now? What was it like to love something so distant? What words did you use to bring the moon back to her? And what did you promise in the moons ear, about that girl back home? Can you, teach me, how to fall from the sky?I ask you this, not because I doubt your feat, I just want to know what it's like to go somewhere no man had ever been, just to find that she wasn't there. To realize your moon walk could never compare to the steps that led to her. I now know that the flight home means more. Every July I think of you. I imagine the summer of 1969, how lonely she must have felt while you were gone.. You never went back to the moon. And I believe that's because it dosen't take rockets to get you where you belong. I see that in this woman down the hall, sometimes she seems so much further. But I'm ready for whatever steps I must take to get to her.I have seem SO MANY skies.. but the moon, well, it always looks the same. So I gotta say, Neil, that rock you landed on, has got NOTHING on the rock she's landed on. You walked around, took samples and left.. She's built a fire cleaned up the place and I hope she decides to stay.. because on this rock.. we can breath.Mr. Armstrong, I don't have much, many times have I been upside down with trauma, but with these empty hands, comes a heart that is often more full than the moon. She's becoming my world, pulling me into orbit, and I now know that I may never find life outside of hers. I want to give her EVERYTHING I don't have yet.. So YES, for her, I would go to the moon and back.... But not without her. We'd claim the moon for each other, with flags made from sheets down the hall. And I'd risk it ALL to kiss her under the light of the earth, the brightness of home... but I can do all of that and more right here, where she is..And when we gaze up, her arms around ME, I will NOT promise her gifts of moon dust, or flights of fancy. Instead I will gladly give her all the earth she wants, in return for all the earth she is. The sound of her heart beat and laughter, and all the time it takes to return to fall from the sky,down the hall, and right into love.God, I'd do it every day, if I could just land next to her.One small step for man, but she's one giant leap for my kind.