Genady

On the #16 now. Most of the first third of the course, so far, is dedicated to questions and answers related to existence of God. This disappoints me.

The blanket will not wrap completely around the weight. It will wrap around its lower half and will go straight up from the equator, leaving the upper half open. So, nothing gets trapped inside.

What gravitational effect radiates from black hole at light speed? I can agree that it demonstrates that aspect of gravity. My 'displeasure' is that it does not demonstrate black hole.

I agree that this is good news. However, I am surprised. I don't know BSL and I know that it is quite different from ASL, which I am studying right now. I am surprised that BSL would require long spelling without special signs for these terms. For example, in ASL, I'd simply sign "green"+"house"+"effect", which are three very short and common signs. Here is the explanation of this effect in ASL, using only standard signs:

Which point? What consequence of gravity? What is the difference between this demonstration and a demonstration of a weight hanging on a spring? A heavier weight stretches the spring more. What does the blanket demonstration demonstrate that the simple spring does not? You put heavier and heavier weights on the spring, and at some point, the spring snaps. Does this demonstrate a black hole? How?

Consider a collapsing star of mass M, not a black hole. As it collapses, its size changes, but the mass stays the same. When its radius becomes smaller than 2GM/c2, it becomes a black hole. With the same mass. Did a correct point get across?

An unhappy continuation of the subject, There’s far more scientific fraud than anyone wants to admit | Ivan Oransky and Adam Marcus | The Guardian

I think that this demonstration is wrong for a number of reasons: 1. Blanket breaks. Spacetime does not. 2. The depression in the blanket is caused by weight of the object. A black hole is caused by its size. 3. The depression is caused not by the object's gravity, but by the Earth's gravity. 4. The blanket responds to the weight due to its elasticity. The spacetime does not. ...

Any sum? Could you give an example?

The blanket exercise demonstrates a breaking point. What does it have to do with black holes though? I mean, you got the Earth, the weight, and the blanket. What does the blanket signify? What does a depression in the blanket signify? Regarding the Hotel California, I don't see any similarity with the black holes at all. You could just use a mousetrap instead.

I watched it and liked it. A lot. I clearly remember that I liked it. Don't remember much more than that, but some vague images. Well, it happened before you were born ...

I get this in Edge sometimes. Also, sometimes, I can't Quote or Edit etc. In all such cases I reload the SFn site. In fact, "sometimes" is not rare at all.

In some fields, it is one in twenty. E.g., biology.

Union of Soviet Socialist Republics, which could be translated as Union of Collectivist Socialist Republics.

Thank you for the explanation. Yes, statism vs collectivism. Soviets stayed in existence and in the name of the country, powerless.

Perhaps, although I am not familiar with these terms exactly.

The original vision for the "society at large" was not a government but a hierarchical structure of "collectives" (called, Soviets).

Yes, it can be collective OR governmental. Not necessarily governmental. That used to be slogan for communism. The slogan for the socialism was, 'From each according to his ability, to each according to his contribution'.

Hmmm... What would be the "interactions" in mathematics?

Perhaps it is not a BIG ANNOUNCEMENT yet because of the 5σ. The golden standard there is 6σ, AFAIK.

Causality does not work backward in time as per SR. SM obeys SR. I think you're right. I don't see it as a model. It is used in making models.

On elementary particles level, when two particles interact, they both change. So, this event affects the future events of each. Isn't it the intersecting of the chains of causality?

The odd behavior of a subatomic particle may shake up physics (msn.com)