You think Earth's gravity is really something when you're climbing the stairs. But, as far as physics goes, it is a pipsqueak, infinitesimal, tiny little effect.
But curriculum-wise, I was drawn to the sciences and specifically to physics, and I really enjoyed it and I think for a little while there, I was really thinking my schooling would be in physics, that that was something I loved.
It's becoming clear that in a sense the cosmos provides the only laboratory where sufficiently extreme conditions are ever achieved to test new ideas on particle physics. The energies in the Big Bang were far higher than we can ever achieve on Earth. So by looking at evidence for the Big Bang, and by studying things like neutron stars, we are in effect learning something about fundamental physics.
Start climbing the stairs without thinking how steep are the stairs or how many stairs are there!
I love playing the Fillmore. I love the walk from the hotel and climbing up those old, iron stairs that lead to the stage. I imagine Jerry Garcia, Jimi Hendrix and the Doors and all those other great bands climbing those same stairs.
If you're going climbing with young people, you get very, very used to seeing your climbing partner as a tiny little dot.
I used to think that if I didn't have time to do an hour long workout class, there wasn't any point in exercising. But now, I make sure to do a little something every day: a brisk walk for 10 minutes, climbing stairs instead of taking the elevator. Then a few times a week, I do a longer workout.
I think we underestimate the importance of kindness sometimes. We understand the power of just a little tiny bit of kindness. It could be the catalyst for something so important. Sometimes just a tiny little gesture or an acknowledgment can make all the difference in turning somebody's life around. I think it has a trickle down effect, when you pass on what you receive without even knowing it. We also underestimate our own power to make a difference with the decisions that we make, every day.
There is still some gravity where we are and even as far out as our moon. That is why our moon stays in orbit around the Earth. We don't feel the gravity up here because it is so much smaller than the force we feel when we are on the Earth.
A mountain is composed of tiny grains of earth. The ocean is made up of tiny drops of water. Even so, life is but an endless series of little details, actions, speeches, and thoughts. And the consequences whether good or bad of even the least of them are far-reaching.
What the string theorists do is arguably physics. It deals with the physical world. They're attempting to make a consistent theory that explains the interactions we see among particles and gravity as well. That's certainly physics, but it's a kind of physics that is not yet testable.
Physics is the science of all the tremendously powerful invisibilities - of magnetism, electricity, gravity, light, sound, cosmic rays. Physics is the science of the mysteries of the universe. How could anyone think it dull?
There's something about most phobias where there's a tiny, tiny corner where you think this really actually could happen.
Theres something about most phobias where theres a tiny, tiny corner where you think this really actually could happen.
The problem is that modern fundamental physics is so far from you and me. The mathematics has become so much more complicated that you need at least 10 years to understand it. Fundamental physics has advanced so far from the understanding of most people that there is really a big disconnect.
What's aero braking? That's a way to use the gravity and upper atmosphere of Earth to sling shot a ship out either deeper into space, or slow it down to be 'captured' by Earth's gravity.
As for me, I want to have fun while I'm working. Now not everyone thinks physics is fun, but I do. I think experimental physics is especially fun, because not only do you get to solve puzzles about the universe or on Earth, there are really cool toys in the lab.