Paul

I live in the UK and I've kind of resigned myself to an "it'll never happen to me" attitude. Even if a normal or nuclear war starts I feel slightly immune to it all as if the worst could never happen! Do you feel the same or are you concerned with the escalating tensions?

If United Airlines had an infinite number of seats and an infinite number of prospective customers, In theory they could drag an infinite number of people off the flight, which means that there would be an infinite number of people on the flight, an infinite number of people wanting to get on the flight and an infinite number of people kicked off the flight, which is triple infinity, which is actually still infinity! How many infinities would it be if the people kicked off the flight joined the queue of prospective customers? Now, if one more person got on the flight and wasn't dragged off, the number of people on the flight would be 1 more than the number of people not on the flight, so the number of people not on the flight would no longer be infinity because there's something more than it. Which begs the question, how pretty is your mom and would she like to take an airline trip with me?

Many years ago there was a market and one of the stall-holders was making all kinds of amazing models by melting either glass or plastic. She made all kinds of things like ships, birds, butterflies, etc all in a few minutes. They models she made were all different colours and looked amazing. I'm sure they were glass but could have been plastic. If anyone has any links to youtube video's or where I could buy some I'd really appreciate it.

Funny answers only please!

Read this story...

http://www.dailymail.co.uk/news/article-4505420/Pa...

They say that god has a plan for all of us! Thoughts anyone?

For many years I've used YA but recently discovered Quora. Quora seems to be a lot more professional and YA seems to have a lot of trolls and eejits. Although tbh YA also has a lot of educated people who give excellent answers. Do you have experience of both and what do you prefer? Also are there any other QA sites that you would recommend?

Let me explain - it was hard to put into words.

So, if we were observing a star for 1 year, and the Universe was not expanding (the star was at a constant distance from us), we would be able to see the history of that star for one year in normal time.

However, the star is receding from us due to the expansion of the Universe. As the star moves further away from us, the light from the star takes longer to reach us. Thus we are perceiving a time dilation.

If we were to travel towards the star at a speed faster than light (and also faster than the rate of expansion of the Universe), we would observe that stars light as we approached closer to its present rather than it's past. So, imagine the star is 10 light years away and we reach the halfway point in six months. The light from the star would now only be 5 light years distant.

Question 1) In what direction is the time dilation - further into the past or the future - as the star recedes from us? This is blowing my mind to try and imagine.

Question 2) Ignoring the speed at which a star would be travelling through space as it rotates around the centre of it's galaxy, in other words just taking into account the rate of expansion of the Universe, how much farther would a star be in 1000 years in the following examples (a) the star was 100 light years away now (b) the star was 1000 light years away now (c) the star was 100,000 light years away now.

I recently moved to a new property which had no phone line. I contacted an ISP to arrange for a new internet connection and it took forever for them to install a line as they failed to attend the first appointment. It was impossible to contact BT Openreach to sort out the problem - is this the same with all ISPs or are there exceptions?

I'm trying to understand what stops providers like TalkTalk being able to offer a service as fast as other providers. I'm in the UK and I've been a loyal customer of TalkTalk for many years but I'm starting to think they haven't got what it takes to compete any more.

When I recently posted a question I kept getting a message saying "We can't post your la-de-dah question right now please try later" or some such nonsense. I removed a question mark from the details and voila, it posted.

Surely Yahoo answers isn't so backwards? It's 2017!

So I recently read this question on Quora and the answer said that a video may have been blocked in the US.

https://www.quora.com/Lets-say-I-dont-believe-the-...

I'm curious - why would the US block such a video (I don't think it has but it's the principle I'm curious about) and it begs the question do the US (or other western countries) block video's and why. Any conspiracy theory nuts out there with some good links? :)

https://www.youtube.com/watch?v=7SQ7JOS0KTo

So my home smoke detector doesn't detect when I'm smoking but goes off at the slightest amount of smoke from something burning in the kitchen. If you go to a hotel however, the smoke detectors will go off if you're smoking in the room. Are they made differently, with different detection catalysts? Or are they simply on a more sensitive setting? Anyone know?

I have two steel tubes, both 16mm outer diameter, which I wish to join together but in such a way that they can swivel. I can't seem to find any products that will allow me to do this. Does anyone have any idea's or could they give me a link to where I could buy such a clamp or even what the type of clamp I'm looking for is called?

I'm looking for bearing that will allow a tube to go backwards and forwards through it (rather than rotate) and for a way to fix the bearing to a surface. So (in my minds eye) the bearing has two shoulders which can be screwed or bolted to a surface. Does anyone know what kind of bearing they're called and do they have any links to buy one, say on ebay?