In terms of absolute magnitude, dark energy is the weakest thing of all: it took the Universe nearly half its age just to begin revealing its effects, and it wasn’t even discovered by humanity until 1998.

The simple answer is, theoretically, yes. First, let us ignore friction, the rotation of the earth, and other complications, and focus on the case of a hole or tunnel entering the earth at one point, going straight through its center, and coming back to the surface at the opposite side of the planet.

42 minutes

If you go deeper into the Earth, it’s still moving all around you, but the mass inside doesn’t have as far to travel. It’s a bit like the lanes on a running track. So, if you jumped into the hole, you would soon be traveling faster than the sides of the hole around you, causing you to crash into the sides.

At the very center, the gravitational force is zero because there’s equal mass pulling on you from all sides, and it all cancels. If you built a room there, you could float around freely. That’s what it means to say that gravity is zero at the center of Earth.

Gravity will accelerate any object at a rate of 32 feet per second per second. What it means is that if we fall for one second we’ll reach a speed of 32 feet per second. After two seconds we reach 64 feet per second. The speed rises as the square root of height, but in direct proportion to time.

the equator

Mount Nevado Huascarán in Peru has the lowest gravitational acceleration, at 9.7639 m/s2, while the highest is at the surface of the Arctic Ocean, at 9.8337 m/s2.

One of Sir Isaac Newton’s accomplishments established that the gravitational force between two bodies is proportional to their masses. All other things being equal, the planet with the strongest pull is the one with the largest mass, which is Jupiter.

Gravity is a real weakling – 1040 times weaker than the electromagnetic force that holds atoms together. Although the other forces act over different ranges, and between very different kinds of particles, they seem to have strengths that are roughly comparable with each other.

strong nuclear force

Actually, gravity is the weakest of the four fundamental forces. Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity.

2. Why is gravity so weird? No force is more familiar than gravity — it’s what keeps our feet on the ground, after all. And Einstein’s theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.

The Hardest Science Quiz You’ll Take Today

• What kind of waves are present during an earthquake?
• What kind of energy does an unlit match have?
• Which of these is another way to write Newton’s second law of motion?
• What is it called when light changes direction after leaving a lens?
• How do you calculate density?

Artificial gravity can be created using a centripetal force. Thus, the “gravity” force felt by an object is the centrifugal force perceived in the rotating frame of reference as pointing “downwards” towards the hull.

These are 10 of those theories, which are incredibly hard to understand.

• The Black Swan Theory.
• The Potato Paradox.
• Simulacra and Simulations.
• The Dichotomy Paradox.
• Vasiliev Equations.
• Maxwell’s Equations.
• Gödel’s Incompleteness Theorem.
• The Theory of General Relativity.

Quantum mechanics is perhaps the most successful theory ever formulated. For almost 90 years, experimenters have subjected it to rigorous tests, none of which has called its foundations into question. It is one of the triumphs of twentieth-century science.

High school: definitely geometry, if it is taught the traditional way (emphasizing logic and proofs). Calculus is up there too, but it is possible to pass calculus without grasping any of the material.

5 Math Lessons You Don’t Really Need in the Real World

• 5 Long Division. Long division is a calculation technique where one number can be divided by another using nothing more than note paper and a tremendous amount of time.
• 4 Geometric Proofs.
• 3 Logarithms.
• 2 Polynomials.
• 1 Calculus.

A correct solution to any of the problems results in a US$1 million prize being awarded by the institute to the discoverer(s). To date, the only Millennium Prize problem to have been solved is the Poincaré conjecture, which was solved in 2003 by the Russian mathematician Grigori Perelman.

It depends on how many hours you work, but assuming a 40 hour work week, and working 50 weeks a year, then a $75 hourly wage is about $150,000 per year, or $12,500 a month. Is $75 an hour good pay? Yes. Any wage above $48.75/hour puts you in the top 10% of U.S. workers.