A medium size tree is about 10 meters. 10 ^ - 2 is a child. 10 ^ -3 is the distance between your eyebrows. 10 ^ -4 is the size of your iris. 10^ -5 is a mite. 10 ^-6 is the diameter of a hair and about the smallest thing you could see with the naked eye.

You have to get down to 10 ^-10 before you are the size of an atom and you...

Perspective...]]>

We start with a simple laboratory (lab) reference frame, and let it be inertial for now. We put a treadmill device at rest on the floor of the lab, and then turn on the treadmill so that the belt is moving horizontally at constant speed, parallel with the floor of...

Pure SR, Relativistic Mass, and its Gravity?]]>

That and a similar negative finding here: https://arxiv.org/abs/1710.03794 is now...

New Vector Theory of Gravity challenges GR]]>

Length-contraction-magnetic-force between arbitrary currents]]>

Actually...

Laws of physics vary throughout the universe, new study suggests]]>

Compression of matter: Limit?]]>

Terrence Howard is an actor who also happens to have his own cranky ideas about mathematics, including the idea that 1 multiplied by 1 should not equal 1 but rather 2. Yep, you read that right. Apparently he is one of those who, having never understood a particular subject, decides to re-invent it his own way, and of course, name it after himself, Terryology. That alone is 20 points on the crackpot index!

And for some unknown reason he is giving an address and...

Terrence Howard at Oxford - Crank Alert]]>

How much is

As I see it, most of us have an intuitive sense of logic, and this has to be very useful throughout our lives and just about for every situation we can think of, including scientific activities. Given that, I came to wonder what more does formal logic

Any real examples of formal logic necessary for solving scientific problems?]]>

Displays as:

\(\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)

I wonder if someone who is good at LaTex could write a short tutorial of the basics, with some common SciForums examples? I'll write one up myself, but I'm a complete beginner at LaTex so it will take a little while.

In the meantime,...

Displaying equations using Tex]]>

This is it:

I've read that when you get down near the Planck length then physics breaks down. Is that right?

But I would like to know what is actually going on in ' points' of space. So make it a question about what is going on in the smallest part of space that you can comment on, know something about.

What I mean by...

What Is Happening In The Smallest Part Of Space?]]>

From wiki

(u = mσΔV/ρefℓ

where...

Electricity and drift velocity.]]>

My understanding is that a point is zero dimensions , xyz and time not existing in a point

In a volume of points there xyz but still no time?]]>

Outside the shell, I think the force acts as if the mass is concentrated at the center.

An advanced technological culture could build an interesting amusement park environment, allowing folks to experience a large weightless space.]]>

But objections aside about whether or not a future human race will build such a thing, what else is the problem about the idea that transmitting any kind of information back into the...

Shows about time travel]]>

For gravity, I don't even know if...

Charge carriers, forces]]>

Yang–Mills and Mass Gap]]>

A 3rd small body at that neutral point, -- does it experience no, or double relativistic effects ?

move to...

A different 3 Body Problem]]>

Guessing that age and physique/fitness would affect likely outcomes. So let's assume a 20-30 year old weighing 110lb. How about if thy weighed 170lb with that being more flab?

Also guessing the area landed on would affect things but don't know how well the average person could control how they'd land in that situation either. Obviously landing the head would be horrendous, but what about...

Lethality of jumping into shallow water from height]]>