Recent content by PhanthomJay

Laminated timber is a bit less strong than sawn timber of the same size, , but has its advantages in certain cases. Be aware of the possibility of the long term separation of the laminated layers, as i have seen this many times. Simple support connections of wood beam to concrete columns is...

A flexible joint is a joint that is considered a pinned joint that is free to rotate the beam at that joint. Many beam to column connections are considered as pinned joints even though there may be partial rigidity in the connection. If you choose a flexible connection, the beam is designed as a...

That is most helpful, thank you for the example.

Rather than me asking a nonsensical question, can you please ask a sample question regarding the spacetime interval between 2 events and give numerical results or inputs for x, t, and s. Thanks.

Thanks for responses but I don't get it, because I guess I asked the wrong question. I want to know what is the spacetime interval dependent upon what the are the variables for different values of x and t when witnessing the same event by different observers. Also if c = 1, then t must be in...

In the Minkowski space time equation in one dimensional space , ds^2 = dx^2 - (ct)^2, what is the value to use for x and t, and what does the space time interval ds represent? For example, if Alpha Centauri is 4 light years away, what values are. used for x and t, based on speed I guess, and...

Honestly this is the first time I ever heard of a Bachelor's Degree in General Engineering. Typically, it's a BS in Civil, Mechanical, or Electrical Engineering, or BS in Civil, Mechanical, or Electrical Engineering Technology (which is good, but it is less intensive and a not as good option)...

Why was the Hubble constant assumed to be decreasing and slowing down (decelerating) the expansion rate of the Universe, while at the same time Dark Energy is presumably accelerating the expansion? And to thicken the plot. recent news from NASA indicates that the Hubble constant is now...

In a pure truss, there is no bending or shear in the members because all loads are assumed to act at the joints, such that member forces are axial tension or compression only. In reality, you have the member dead weight distributed across the member, in which case the dead weight is assumed to...

I think the problem is not clearly worded, but maybe not since an image was not attached. There is a difference if the mass is hung from the spring and slowly lowered to its at rest equilibrium position, as opposed to being hung from the spring and quickly released. I believe the problem...

You’re welcome👍

I understand your confusion, because all are 'sort of' correct. The theorem states essentially that the moment sum of 2 or more concurrent and coplanar forces (that is, acting in the same plane and meeting or tending (line of action) to meet at a point) is equal to the moment of the resultant...

Hah, Dave , nice sense of humor! And good research! I've had some issues this past year, hope to be a regular again. When is the next full moon over the horizon?:wink:

Once again, I want to thank you all for your time and responses. I've said it several times, but I'll say it again, you all are amazing geniuses in this field! And I still miss Marcus.

Thanks, but why would it not be that the galaxies, not space, are moving apart as physical objects that are "spatially extended" (I borrowed that "term" from Einstein)? I don't particularly like the balloon analogy. And is time expanding also, being part of spacetime?