A Quote by Rainer Weiss
I thought that there must be an easier way to explain how a gravitational wave interacts with matter: If one just looked at the most primitive thing of all, 3D floating masses out in space, and look at how the space between them changed because of the gravitational wave coming between them.
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The obvious thing to me was, let's take freely floating masses in space and measure the time it takes light to travel between them. The presence of a gravitational wave would change that time. Using the time difference, one could measure the amplitude of the wave.
The students on my course were fascinated by the idea that gravitational waves might exist. I didn't know much about them at all, and for the life of me, I could not understand how a bar interacts with a gravitational wave.
I said, suppose you take a light - I was thinking of just light bulbs because, in those days, lasers were not yet really there - and sent a light pulse between two masses. Then you do the same when there's a gravitational wave. Lo and behold, you see that the time it takes light to go from one mass to the other changes because of the wave.
A gravitational wave is a very slight stretching in one dimension. If there's a gravitational wave traveling towards you, you get a stretch in the dimension that's perpendicular to the direction it's moving. And then perpendicular to that first stretch, you have a compression along the other dimension.
The teacher showed us how to see proportions, relationships, light and shadow, negative space, and space between space - something I never noticed before! In one week, I went from not knowing how to draw to sketching a detailed portrait. It literally changed the way I see things.
Einstein's gravitational theory, which is said to be the greatest single achievement of theoretical physics, resulted in beautiful relations connecting gravitational phenomena with the geometry of space; this was an exciting idea.
I hope that vigorous space exploration continues and that humankind will have a space station that resides between Earth and the moon. Outside the gravitational field of Earth, we could launch robotic spacecraft to other destinations in our solar system.
But I looked out at the waves far below the bluff. They looked violent, erupting against the cliff. I watched them rising - up, up, higher, higher - then falling, crashing, swirling into chaos, passing away. I breathed deeply. I tried to breathe space between my thoughts, find the space between the anger.
And just as music is the space between notes, just as the stars are beautiful because of the space between them, just as the sun strikes raindrops at a certain angle and throws a prism of color across the sky—so the space where I exist, and want to keep existing, and to be quite frank I hope I die in, is exactly this middle distance: where despair struck pure otherness and created something sublime.
We'll have four different gravitational wave windows open within the next 20 years, and each of them will see something different. We'll be probing the birth of the universe with this. The so-called 'inflationary era' of the universe. We'll be probing the birth of the fundamental forces and how they came into being.
I don't think love is a tricky issue at all. Love is best understood when we share: Share time, energy, food, resources, insights, information, whatever. It's usually thought of as something that exists between two people, but that's just because it's easier to see and feel in the space between them. Each person is sharing a lot with the other.
To say that a body or its gravitational field 'bends in space' in its vicinity is the discuss visual space in acoustic terms.
We're in a time when bashing is the norm - especially on social media, where everybody's online and no one interacts face-to-face. There's a quote I found yesterday - it was hilarious: "People need to chill, like literally, we're floating in space on a giant rock we can't leave. Look at the stars or something instead of being awful." You think of floating on a rock in space as so alien, but that's exactly what we're doing.
At bed-time I went into my room and put out the light. I didn't get undressed. I lay on my bed and looked out of the window at the stars. I read in a book that the stars can take you anywhere. I've never wanted to be an astronaut because of the helmets. If I were up there on the moon, or by the Milky Way, I'd want to feel the stars round my head. I'd want them in my hair the way they are in paintings of the gods. I'd want my whole body to feel the space, the empty space and points of light. That's how dancers must feel, dancers and acrobats, just for a second, that freedom.
Many of us on the project were thinking if we ever saw a gravitational wave, it'd be an itsy bitsy little tiny thing; we'd never see it. This thing was so big that you didn't have to do much to see it.
What's happening right now, this month, I check in and go, 'Hey. You are at the top of a wave right now. Look around and enjoy it because it's not going to stay,' ... The wave goes away. It does not dictate how good I am or my worth. It's just the way it happens.
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