John Cuthber

Indeed- the point I was making was that it'snot just the weight of the roof you need to account for. Someone might want to stand on the roof to work on it.

The requirements for snow loading may also differ.

Would you like to calculate roughly how sensitive the balance would need to be.

They assert that the mass change is 0.186 mg or 1.86E-7 Kg Equivalent to a stored energy of 16 GJ or about 4 tonnes of TNT That's just silly. It's fake.

Is this an April fool gag or something? There is, in principle, a tiny change in mass due to a change in the stored energy. It would be impossible to measure it directly in this way.

https://xkcd.com/552/

Here's an interesting thought for you... Gout is due to too much uric acid in the body. Uric acid is, essentially, a degradation product of DNA. If only there was a way to get rid of "spare" DNA...

"Also know, the Sodium Ascorbate decompose at ~300ºC to make Sodium Oxide, but it´s very cheap" I doubt that. Why wouldn't it give the (more stable) carbonate?

Not really; that's the prostate gland's job. However the only plausible mechanism by which it would be possible to get any nutritional deficiency would be if you were too busy ejaculating to remember to eat.

Much of what you said then ( July 30, 2017 at 3:54 PM) was a quote from what you had said earlier. "On 26/07/2017 at 7:57 PM, Doctordick said:" And, among other things, what you said there was "And representing experiences without making any assumptions of any kind is quite a difficult thing to achieve. " Which makes no sense because, in making any such representation, you tacitly assume that experiences exist and they can be represented. You keep assuming stuff, yet complaining when others make different assumptions.

We do; it's just that most people don't notice. Part of that is that they are told not to. The "God" idea isn't the cause of xenophobia but, it sure as hell exploits it.

Mercury will form an alloy with zinc.

Then you will know that it's the terrain, at least as much as the cloud, that "decides" where the strike is. So why did you say "Lightning is coming from a km or so up normally, and has largely made up its mind so to speak before it comes to ground. "? It makes up its mind based on the streamers from the ground (and, where appropriate, from a conductor) so it hardly matters how far up it comes from.

A fine question- for another thread. Another, slightly nearer the topic would be "what can Islam (or any other religion) do to earn respect?". However it's in the nature of religions that the one thing they can't do seems to be the one thing they would need to do. They would need to accept that they were wrong, and change. I'm not holding my breath.

At the risk of incurring the wrath of the mods, you need to read the Bible: Matthew 5:17 et seq. But this isn't the place for saying that "religion A is better then religion B because..." so please don't respond here

The difference is that science books get updated. Islam hasn't been, in spite of the many discoveries made since it was written. - that rather undermines it's respectability as a source of information.

re "A holy book like the Quran is a way to preserve political and cultural idea's from a certain class from a long time ago" It's a book- it has ideas written down. That's done to preserve them. The ideas in the book are, or at least contain, cultural and political ideas. It came from a member of the warrior class in the case under discussion- but in general, the works come from a fairly well defined class (the Bishops in the council of Nicea, for example). So, the only assumption is that scripture is from a long time ago- well, OK some isn't . The book of Mormon is quite recent, and that of the flying spaghetti monster is younger still. That's not really going to affect the content of this thread.

Do you realise that all that has been cited before- and every bit of it has been discredited as "science"? So, for example, "Do not the unbelievers see that the heavens and the earth were joined together" What does "heavens" mean? " We made from water every living thing…" (21:30)." It's the bits that are not water that do all the living. " All (the celestial bodies) swim along, each in its rounded course" (" There's nothing to swim in. Swimming implies a deliberate desire to get from one place to another. And so on. Please don't waste time rehashing arguments that have already been lost. There really is nothing in any scripture that counts as evidence.

Says who? Any independent corroboration? If you can say it without needing evidence, I can discount it without needing any.

No. They don't. Just to pick the most obviously scientific one. The Quran tells us nothing about the cosmos a except a few things known to be false. (Hint: it wasn't made in 6 days). There are other books that tell us about old cultures. Many of them avoid the biases inherent in a religious text. So, outside of the realms of fantasy and made-up stuff, What Islam has done to deserve respect?

OK I asked what Islam has done to deserve respect. Not the people who follow Islam, nor any other faith or its followers. Unless you are answering that question then you are going off at a tangent. So, once again. What Islam has done to deserve respect?

Lightning starts from the ground and goes up as much as it starts from the clouds and comes down. https://en.wikipedia.org/wiki/Lightning#Upward_streamers But you are clearly right about the second part.

Well, you shouldn't have.

For a start, why would you want to calculate the power density at the eye? Since the polarisers don't work properly with IR the calculation you gave may be dangerously wrong. It's not easy to calculate the fraction of the light that gets through 2 polarisers- again they are not perfect so the cos2 theta or whatever isn't correct. I can calculate the fraction of light that gets through a filter- if I'm given the transmission curve and I wouldn't rely on a filter unless I had that curve. I can measure the transmission if I really want to. Why not just admit that your idea is dangerously wrong in this case (albeit that it's a useful trick in some other situations)

Are you being deliberately obtuse? The people deserve respect, just like anyone else. Their religion doesn't- unless, you can finally show that it did something worthy of respect.