Recent content by Fisic

In the end there were 63 consecutive draws without a win. Back at the start of December, after 47 of these draws, a statistician made the following statement (from Wikipedia) Of course, consecutive winning draws are also statistically unlikely. New rules from here on state that there will...

How does constructive and destructive interference come into play as the wave makes multiple passes around the globe?

Well, wouldn't you know, this lottery was finally won on Saturday...right on the day that they made it a must-win draw. Since June, nobody had matched the 6 numbers drawn on any of the twice-weekly draws, but the rules for last Saturday's draw meant that it would no longer be rolled over. If 6...

Dewpoint is a proxy for the concentration of water vapour molecules in the air (i.e. the mixing ratio). The higher the dewpoint, the more molecules of water there are per kg of air (mixing ratio is quoted in grams of water per kg of air, g/kg). At standard atmospheric pressure (1013.25 hPa), the...

They do indeed allocate the extra takings to the lower prizes. The cap occurs when the jackpot exceeds the previous high record (€18.6M). We're now into 2022 and it still hasn't been won. One of these days/weeks/months...

I should point out that the minimum play per person is two lines and around 2.2 million people play each draw (but probably more in recent weeks). That makes the lack of wins all the more surprising.

Yes, and the Coefficient of Restitution seems to be the parameter measured to cover both of these properties. The core of most balls is made of various cis-grades of Polybutadiene, but I haven't found much more detail than that. I feel an experiment coming on...dropping balls from different...

Our lottery here in Ireland has not been won for 27 weeks (54 draws), and it's causing consternation. Even the Government are getting involved now, but how unusual is it really? https://www.rte.ie/news/ireland/2021/1215/1266999-ireland-lottery-latest/ Choose any 6 numbers from 47, with the...

Please correct me if I'm well off the fairway with the following theory. We all know that atmospheric conditions (temperature, pressure, dewpoint, etc.) can affect many different bodies in motion, from aeroplanes to cars to golf balls. But in the case of a golf ball, exactly how big is the...

Hello all As I said, I found this by Googling "Physics forum", and well, it does what it says on the tin. Looking forward to contributing, and of course learning more, about Physics here. My profile name "Fisic" is from my native Irish language, but my avatar is the Japanese translation. Yes...