Recent content by Canada Bob

Thanks for the above Peter, apprecited, maybe I should rephrase my question, it's the path around the sun or any other star that I meant to ask about, rather than the spin of the planet itself. If depending on the POV all the planets in our solar system follow a clockwise path around the sun...

Do all the planets in all the solar systems in our Galaxy spin in the same direction ? Clockwise or anti clockwise depending on the viewers POV.

j Thanks for responding, and for the article on the link, interesting reading...

Powerful ? do you mean sensitive ?

How good are our ears / what can SETI and the like detect ? If we are listening for a radio signal broadcast by some advanced civilisation in our galaxy how sensitive would our "ears" have to be to detect a signal ? Obviously part of that equation would be how strong and how close the...

Fermi asks "why don't we hear from them" could that be because they don't "shout" loud enough or maybe our ears are sensitive enough to pick up a signal emitted by advanced ET's within just our own backyard. Is it down to the sensitivity of the SETI arrays, or the strength of a signal from...

Thanks again Nugatory for your time and consideration, it's valued and appreciated.

Hello Zapper, I guess the "problem" is, we aren't all on the same rung of the ladder, or even on the same ladder {of interest}. I'm a retired marine engineer with a curiosity about certain elements of the cosmos. I had hoped that my question, presented in layman's terms, might have solicited an...

Thanks for the above, particularly for the link, appreciated, the calculator on there resolves my curiosity.

Appreciated, that the photons time will be different, but, "much" is a moveable feast, shouldn't it be calculable ?

Thanks for the above Nugatory, I'm with you on the first part, how "he" would see the sun go by and the Earth heading towards him, but, if I divide the distance by the speed of light I get around 8 minutes but that's from my point of view / my time scale, I'm not moving at the speed of light but...

OK, forget the photon, suppose a bloke in a "spaceship" {a bloke who owns an atomic stopwatch, or the like} zipped across 93 Million miles, how long would he think he'd traveled ?

I know that a photon traveling from the Sun takes around 8 minutes to get to Earth, but, how long does the photon "think" {if it had a stopwatch} it took to get from the Sun to Earth ?

If we are part of a Multiverse is it likely that every universe is the same age ?

Part of the problem Berkeman is that I need a device that will pulsate {with some force} at least 50 times per minute and possibly much faster than that, up to the speed that a bass speaker would vibrate at. The goal would be to have the pulse/pressure go in one direction, as described by...