Excellent-Practice

Excellent-Practice t1_je9fr8s wrote

The best sound bite I've heard for this one is that consciousness is a story the brain tells about itself. The idea is that what we experience as consciousness is a feedback loop of the brain producing and receiving its own stimulus. In addition to processing actual sensory input, out brains are also adept at creating signals which it can then process as if those signals were sensory input. What you eventually get is a constant hum of brain activity in which the brain is describing its own state

7

Excellent-Practice t1_j6iagb2 wrote

When your body releases energy from food, chemically, it is the same process as if you lit that food on fire. The sugars, fats, and proteins are broken down into simpler molecules like water and carbon dioxide. Instead of releasing that energy as hear and light, our cells store it in chemicals to be used later. The amount of energy stored in food is measured in calories. Your body is always burning calories, and everyone has a baseline of how many calories they need daily just to stay alive. If you do nothing and eat more calories than your base line, you will put on weight. If you consume fewer calories you will lose weight. Alternatively, you can increase your activity while keeping your consumption constant which will lead you to burn more calories than you consume and cause you to lose weight

1

Excellent-Practice t1_j0a7ise wrote

One way to think about this is to put it in familiar terms. Instead of a spinning centrifuge, think of it as a steep hill. If you run fast enough down a steep enough hill, you can get some hang time. If you run up that hill, you're not going to run very fast. In a centrifugal space station, going downhill is moving opposite the direction of rotation, and going uphill is moving in the same direction as rotation. "Down", the direction that objects fall toward, won't follow a radius from the center but instead will be angled back against the direction of rotation and will vary with distance from the axis of rotation as a result of the coriolis effect

12