Recent content by newtons_laws

Sorry to see the space.com forum close down (for the second time!)

You said "In normal x-rays the emitted x-ray supposedly can possess any frequency and has little to do with the atoms involved." Just a clarification, you're talking about the so called "Bremsstrahlung"(German for breaking radiation) that is produced when the electrons in an X-Ray tube strike...

Recent article on space.com https://www.space.com/19824-clyde-tombaugh.html The article says "The telescope at the observatory was equipped with a camera that would take two photographs of the sky on different days. A device known as a blink compactor rapidly flipped back and forth between the...

The signal to noise ratio on this thread is very low..... :tearsofjoy:

Bowers3934, no offence was intended, I just wasn't sure if you had understood my point about the arbitrary nature of the sampling and the resultant recorded values. In relation to your "YES" response does that reflect your belief that 1800 years ago aliens sent a message to Earth and they...

As the signal originated 1800 light years away it originated 1800 years ago. The graph of the signal you posted shows the sample rate as every 12 seconds. ( 5 sampling intervals between 0 and 60 seconds on the graph, 5 sampling intervals between 60 seconds and 120 seconds, 5 sampling intervals...

A Light Year (LY) is a unit of distance, not time. Also I note you haven't commented on my post that pointed out that the digital sampling timing that resulted in the 6EQUJ5 sequence was purely arbitrary and a different sampling interval or start time would have resulted in a completely...

Bowers3934, the graph of the WOW! signal you posted shows that the signal received on Earth was sampled at 12 second intervals to produce the 6EQUJ5 code sequence you mention. However the actual timing of the equipment digital sampling in relation to the incoming signal was purely arbitrary, if...

If my understanding about BBT is correct it says that time in our Universe started at t=0, so there wasn't anything before t=0, it's as far back as you can go? It's a bit like someone moving Northwards on the Earth, when they reach the North Pole that's as far North as they can get and can't go...

The recently reported impact of a larger than expected micrometeorite on one of the mirror segments of the JWST (fortunately not serious) set me to thinking about the potential hazards from such impacts on interstellar travel. Imagine the kinetic energy involved by being hit by something the...

It's an interesting thread, but just as an aside, I don't like the use of the commonly used term 'fictional forces' to describe the forces present in a rotating (non-inertial) frame of reference, as that implies they are not 'real'. These forces are perfectly real in that rotating frame of...

Err, since the demotion of Pluto there are now only 8 planets in total in our solar system, and currently only one earth like planet (the Earth!), although Venus and Mars may have been earth like for a period of time earlier in the solar system's history.....

I don't think designing and building a new nuclear thermal rocket would necessarily be all that much more expensive than designing and building a new chemical rocket, all of the design and materials problems were overcome and successful practical demonstrations were performed back in the 1960s...

There is a fourth alternative - the Far Side of the Moon :)

The requirements for food, air etc on a manned Mars mission can be greatly reduced by halving the time it takes to reach Mars, which can be achieved if nuclear thermal rocket technology (successfully demonstrated in the 1960s) is used rather than conventional chemical rocket propulsion...