Tell us something we don’t know.

[RidgeTopWVA]

Mike actually lived in Texas. Houston and Dallas for a time.

yes

 

[PhysAssist]

but the universe is not infinitely large. It is finite in both spacial and temporal extent

That is, at best, an opinion and scientifically, it's an area of significant controversy:

Is space infinite? We asked 5 experts

The universe has a finite age — 13.8 billion years to be exact. So if it had a beginning, why is it so difficult to say for sure whether it will have an end?

theconversation.com

Note: the 2 "experts" who answered that they think space is finite had no actual scientific basis for their assertions, and they also only had training and expertise in "soft" sciences e.g., history and philosophy; whereas those who postulated that space is or may be infinite are 2 astronomers and an astrophysicist.

 

[PhysAssist]

We have no idea whether the universe is finite or infinite

Well, we don't know which it is, but we [scientists] both have concepts of how it could be either, and are doing 'science' to figure out which it is.

Tantalising evidence hints Universe is finite

The data suggest the Universe is relatively small but other work seems to contradict the idea – scientists are now busy trying to resolve the conundrum

www.newscientist.com

Hint: despite the misleading headline, there is still evidence on both sides of the question.

 

[PhysAssist]

AC currents. Not so much DC

Actually true for both:

Are we teaching electricity the wrong way around? › Analysis and Opinion (ABC Science)

www.abc.net.au

How does alternating current travel anywhere?

I'm just learning the basics of electromagnetics and am a bit confused as to how ac works. From my understanding, a rotating conductive wire in a magnetic field create a current that changes direction from positive to negative flow, modeled in accordance with the sine function. But i was...

www.physicsforums.com

 

[PhysAssist]

in the human body, most of the life forms are not human.

It depends upon when you last pooped:

Revised Estimates for the Number of Human and Bacteria Cells in the Body
and

Scientists bust myth that our bodies have more bacteria than human cells - Nature

Decades-old assumption about microbiota revisited.

www.nature.com

Both of which revisited the previously flawed estimates and calculate the ratio to about 1:1, with a significant decrease in bacterial counts after defecation.

 

[PhysAssist]

View attachment 738682View attachment 738683 These always are a little wierd... the shell didn’t harden so it’s like rubber.

As a kid, I made ones like that by soaking eggs in vinegar.

 

[Fuddyduddy1952]

'Research proves that sniffing hydrogen sulphide that is found in farts can reverse mitochondrial damage and help avert strokes, dementia, cancer, and heart attacks.'
I explained this to my wife hoping I won't have to sleep on the couch anymore.

 

[RidgeTopWVA]

Someone was in control of the creation of everything..

 

[PhysAssist]

The EARTH is a more perfect sphere than the finest made pool ball!

Nope- it's an oblate spheroid that bulges at the equator due to centrifugal forces.

 

[PhysAssist]

I tried wearing a wristwatch several times in my life, but they always annoyed me. Almost all jewelry does. So when I do carry a watch, it's in my pocket. The only jewelry I wear is my wedding band.

I couldn't wear watches or rings because I had to wash [read- scrub in for procedures] so ofrten I developed eczema and fungal infections.

So my wife's and my own wedding bands are tattooed on.

The advent of alcohol-based hand sanitizers was a god send for me, as was leaving the specialty which required my scrubbing in for procedures.