Name: Why the universe seems...
Uploaded: 2025-11-05
Description: We are evolved denizens of Middle World, and that limits what we are capable of imagining. We find it intuitively easy to grasp ideas like, when a rabbit moves at the sort of medium velocity at which rabbits and other Middle World objects move, and hits another Middle World object like a rock, it knocks itself out.

Werner Heisenberg

The uncertainty principle refers to the degree of indeterminateness in the possible present knowledge of the simultaneous values of various quantities with which the quantum theory deals; it does not restrict, for example, the exactness of a position measurement alone or a velocity measurement alone.

German Physicist

Benjamin Banneker

Standing at my door, I heard the discharge of a gun, and in four or five seconds of time, after the discharge, the small shot came rattling about me, one or two of which struck the house; which plainly demonstrates that the velocity of sound is greater than that of a cannon bullet.

American Scientist

Howard Lutnick

What people really haven't thought about with real estate is, if you get tax reform, you're going to see real estate now... the velocity of selling and buying real estate will just kick.

American Businessman

Ban Ki-moon

In 2009, at the height of the global economic crisis, it was clear that we were seeing something new: the impacts of the crisis were flowing across borders at unprecedented velocity.

South Korean Leader

Jake Arrieta

That's why it's so important to have that gap between your fastball and off-speed pitches: then, when you effectively locate your fastball, it plays at a higher velocity.

American Athlete

Charles Babbage

The proportion between the velocity with which men or animals move, and the weights they carry, is a matter of considerable importance, particularly in military affairs.

English Mathematician

Michael Leunig

I think we live in delusional times, whether it's with a great ability to totally distract ourselves with technology, or with speed and the velocity of life.

Australian Cartoonist

Zbigniew Brzezinski

Given the accelerating velocity of history, we should begin charting deliberately the next phase in its trajectory.

American Politician

Andrew Ng

One of my philosophies of building companies is the importance of velocity.

Chinese Scientist

Hans-Ulrich Obrist

Everything I do is somehow connected to velocity.

Swiss Critic

Unlike 'speed', 'velocity' implies movement in a specific direction.

Direction Matters

'High velocity' means very fast in one direction, not just fast in general.

Not Just Fast

'Velocity' is commonly used when precision is needed, such as in sports or driving.

Precise Term

In physics, 'velocity' differentiates between 'speed' which lacks directional information.

Physics Specific

'Velocity' is a vector, meaning it has both magnitude and direction components.

Vector Quantity

Velocity can be 'relative' if measuring movement against a particular object or point.

Relative Concept

In calculus, 'velocity' measures how fast something's position changes over time.

Calculus Connection

'Velocity' in math often means the rate at which an event or action is happening.

Change Over Time

In math, 'velocity' can represent the slope of a function at a certain point.

Function's Slope

 We are evolved denizens of Middle World, and that limits what we are capable of imagining. We find it intuitively easy to grasp ideas like, when a rabbit moves at the sort of medium velocity at which rabbits and other Middle World objects move, and hits another Middle World object like a rock, it knocks itself out.

Why the universe seems...

 We then execute that on the robot, we observe what happens, then we adjust the controls, using a sequence of techniques called iterative learning. Then what we do is we increase the velocity a little bit. We observe the results, adjust the controls again, and observe what happens.

Ken Goldberg: 4 lessons...

 Humans have been fascinated with speed for ages. The history of human progress is one of ever-increasing velocity, and one of the most important achievements in this historical race was the breaking of the sound barrier. Not long after the first successful airplane flights,

The sonic boom problem -...

 was her assumption that she and Terra had equal claim to being inertial observers. To be an inertial observer, one has to maintain a constant speed and direction relative to the rest of the universe. Terra was at rest the entire time, so her velocity was a constant zero.

Einstein's twin paradox...

 important equations this the important point is this is just based on drawing balls down okay so I can say how much how fast is that air have to go in order to make the helicopter hover that's this one equation up here the velocity the other one is how much power

How do models help us...

 And you've only gone and done it. Finally. It took a long time. Talk us through this. What are we looking at here? So this is one of our rocket boosters coming back from very high and fast in space. So just delivered the upper stage at high velocity.

Elon Musk: The future...

 One of the distinctive features of the quantum world is the possibility of state superpositions, where particles’ positions or velocities can be simultaneously in two or more different states. If you can put the electron into a superposition

This thought experiment...

 Each has an astronomically large range of potential outcomes, dependent on the tiniest of differences in position and velocity. This behaviour is known as chaotic by physicists, and is an important characteristic of n-body systems.

Newton’s three-body...

 This refers to the quantum properties of all the particles that make up that apple, such as their position, velocity and spin. Every object in the universe is composed of particles with unique quantum properties.

Hawking's black hole...

 including radio velocity, in which a planet causes a star to wobble. Direct imaging, where the glare of stars is blocked in order to see objects nearby. Astrometry, which observes the star's movements

Velocity

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