All Answers 358087 Answers

Apparently....they just don't stick well to "forum"  posts......

Thanks Alan :)

They stick to the wet posts and the wet glass (and themselves) via surface tension.

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Your last line is correct.  

However, your 2nd line should start with a 36, not just a 3; and your third line should say y^2 = 81/36 (you take the square root in the next line).

Your fourth line should say y = ±9/6 as 9 is the square root of 81 and 6 is the square root of 36

Now 9/6 = 3*3/(2*3) 

So y = ±3/2  (or ±1.5)

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Why do soap bubbles 'need' to joint to, well, anything?

I don't know civonamzuk - I expect you are joining in the fun like everyone else  :)

Here's a hint.....put both solutions back into the original problem....if they "work"....they must be correct  !!!

Good job, Alan!

What am I doing here...?

Ah, Melody.....I think you're making a mountain out of a molehill....LOL!!!

Here's a photo of the soap film solution:

Too bad if there is a cliff in the way :/

I've never seen it before...but...it looks like a good "tavern bet"  problem....!!!!!

Thanks, but I can't really take credit for it - it's a well-known optimisation problem, I've come across various versions of it dozens of times before.

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Very nice, Alan....!!!!

Because you are Anonymous we can't see your images (I recommend that you register).  However, I think the minimum road length configuration will probably look something like the following:

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No, he is in the Queen's army and he is heralding your arrival :D

Thanks all.

Melody, I hope that's not meant to be me blowing my own trumpet!

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Thanks  Chris.

The horn was straight off the net. The others were partly done in word with wordart :)

Love those graphics, Melody.....!!!!

If she was born on Feb 29th in a year that was 4 years before a century whose first two digits are not evenly divisible by 4.

For example.....if she was born on Feb 29th, 1896.....4 years later will not be a leap year because 1900 has its first two digits = 19.....and this is not evenly divisible by 4.

So...her "first" birthday will be on Feb 29th, 1904......eight years after she was born  !!!!!!!

@@ End of Day Wrap   Mon 4/5/15  Sydney,   Australia Time   1:00am (Really Tues)   ♪ ♫

Good evening all  

A lot happened today but I will do the credits first:   Our fabulous answers were provided by Badinage, MathsGod1, Sean1w0ii, Alan, Mellie, Awesomeee, CPhill, DarkBlaze347, Heureka, Geno3141, SoulReaper222, Zacismyname, Dbg4thebest and Civonamzuk.  Thanks all.

Mr Massow contacted me today and said that these changes have been made.

* Anons can no longer post images or web links    * A simple swearword filter has been implemented

* Message system has been improved    *mobile calculator start page improved

* There was also a score update today.  Some people's scores jumped markedly and this is why.

Congratulations to MathsGod1 for gaining his 1000 point star.    

Improvements that are to come:

* Better filter    *faster page load    *better message system.

Thanks you Mr Massow  

This morning someone was impersonating me.  Admin noticed almost immediately and the member has been deregistered.  You must be very careful in any internet environment.  It is very easy for people to pretend to be someone that they are not.  You as a user must be very cautious.  Do not be too quick to believe people.

Some people have noticed that there is a CPhill and a CPhill2.  Do not be alarmed, they really are the same person.  There are a great many messages between me and CPhill and this is causing problems for us.  So the alternate name CPhill2 was registered just so that we can continue to communicate with one another.

Now for the really BIG news.

Chris and I are delighted to announce that as of today ALAN will be moderating along side of us. 

Alan has been a member for over a year and his contirbutions to this site have been invaluable. 

We thank you Alan and we look forward to working with you for a long time into the future   

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