151

(48 replies, posted in Mathematics & Science)

I opine that it is advisible to set it up so that. . . . .

You seem to be continuously pining - for the fiords, William ?.

A statement that you opine for some action, as you frequently do, is not a request to do it.
I think that you could, more to the point, suggest the action you think desirable

I suggest it is  set up so that. . . . .

A cleaner statement.

From the web:

Hyphen with Compound Modifiers: Two-Word Adjectives Before Nouns
Using hyphens to connect words is easy. Picking the right words to connect is a little harder. Let’s start with compound modifiers.

A compound modifier is made up of two words that work together to function like one adjective. When you connect words with the hyphen, you make it clear to readers that the words work together as a unit of meaning.

It’s recommended you don’t take down any load bearing walls when renovating.
In this sentence, it sounds like you shouldn’t take down any load that is holding up a wall. A hyphen should be inserted between load and bearing to make it clear that we’re talking about walls that are bearing a load.

It’s recommended you don’t take down any load-bearing walls when renovating.
This rock-hard cake is absolutely impossible to eat.
We’re looking for a dog-friendly hotel.
Generally, you need the hyphen only if the two words are functioning together as an adjective before the noun they’re describing. If the noun comes first, leave the hyphen out.

This wall is load bearing.
It’s impossible to eat this cake because it is rock hard.
Is this hotel dog friendly?
You also don’t need a hyphen when your modifier is made up of an adverb and an adjective.

Do you expect me to believe this clearly-impossible story?
Do you expect me to believe this clearly impossible story?

I think this is the nearest to your problem.

Socially is an adverb, and distanced is an adjective. So you don't need the hyphen.

Also it is clear socially doesn't modify parcel, but I suppose it could be properly modifying delivery.

153

(48 replies, posted in Mathematics & Science)

In the old days Control H was used to backspace, as in delete, when keying text.

control H as been Find and Replace for all the years I remember.

154

(5 replies, posted in General Discussion)

For those  who know what it is about !


https://i.postimg.cc/DSsmQFWD/image-2022-04-17-170651033.png

155

(6 replies, posted in Mathematics & Science)

This is a rehash of the first one I showed - not an easy one to process. I can't get it sharp enough.
https://i.postimg.cc/68rJLWX8/image-2022-04-15-145922946.png

156

(6 replies, posted in Mathematics & Science)

To get the cover  background image, I had to do this.

1) Find a black on white circuit diagram, and crop a portion with sufficient quality in the lines to invert. This was my initial problem, as I couldn't find a nice complex circuit diagram with heavy enough lines,  as I was copying from one of those image browsing fields  you get in a search result.

2) process the image in photolab (out of PPX9) from B/W to get blue lines on a white background

3) Process the image by inversion to get yellow lines lines on black and then on to white lines on blue.

4) For this image, rotate and crop irregularly to fit image to A4 page.

The original, back in the day, was implemented by the company print room.

157

(6 replies, posted in Mathematics & Science)

I've had another go, and this is closer to the general effect of my cover. The circuit would have been a more old fashioned digital circuit, and of course, the  title details would have appropriate to the document.
https://i.postimg.cc/ZC7P03gH/image-2022-04-15-142533149.png

158

(6 replies, posted in Mathematics & Science)

Just for fun, I've recreated something like the original cover
https://i.postimg.cc/N29JhsLc/image-2022-04-15-115818107.png
The cover was background darkish blue, and the circuit was, as I remember, white fine lines, subdued.

I have been trying to reproduce the exact effect, but I can't see how to get a thin clean white line diagram on top of a blue background field. One problem is that I can't find a digital circuit diagram with the sort of components available back in the day. I've searched for digital schematic diagrams in my browser, and there are many different sorts of diagrams there. But not quite with the number of small IC's used then, in the absence of complex computer and other multifunctional chips. So the diagrams are of low resolution and don't lend themselves to much processing.

159

(6 replies, posted in Mathematics & Science)

From whence cometh the blackboard background maths?

It reminds me of about 1971 when I was offered the opportunity to design the cover of a report, study or somesuch, on a digital satellite.

I thought it would be a good idea to make the background a portion of a digital circuit. But, could I find a schematic to suit that wasn't classified? It was difficult, but I got there in the end.

160

(5 replies, posted in General Discussion)

Chag Pesach Sameach.

1st seder Friday night 15 April

Happy Passover to all who care....

(and a happy and thoughtful Easter to everyone who respects the season.)

161

(5 replies, posted in General Discussion)

Router check says d/l speed is 30M, so lower value applies within lan.

I'll have to live with that. They only promise 30 M with the bb package.

162

(5 replies, posted in General Discussion)

It was slow this morning at about 11 am.  Talktalk Fibre 65. Fibre to the Cabinet.

Several test runs: mostly about 27 Mbps.

Recently signed on for a new contract, since then has dropped from about 35 M

Thanks, all.
Found it, changed it
Veni Vide Vice.......

Which group of settings should I change?

Surely not the Windows settings, the screen time (lower rhs edge) shows BST.

However, I can't see how to change any forum settings. Please advise....

Posts just made at about 1.50 pm by my watch , just now, appear to be timed as about 12.50pm.
Please confirm, someone, that the forum timing is GMT.

166

(328 replies, posted in General Discussion)

eric, there is no double meaning to the words. The lady is saying exactly what she means.

It's not a "belly laugh" joke. It's just the juxtaposition of the concept of enjoying a social evening with friends, and the not so niceness of expecting their hosts to engage in verbal fisticuffs, from which the lady will get the benefit as material for her own work.

If you still don't get it, then, please, pass on. It's not worth further explanation.

167

(328 replies, posted in General Discussion)

Who are Peter and Julia?

Does it matter? The joke is the intention of the lady to derive dialogue from the discomfort of their hosts.

168

(8 replies, posted in Mathematics & Science)

What do you make of it please?

What it says!

It's quite clear....

I have been trying to rationalise why the scale is natural log...

My mind is sadly too feeble  at this moment to originate a proof, but I can post a comment from the Mathologer piece:

Proof of the length of the wheel being ln(10) :
When the number x reaches the wheel, the rubber band has stretched by a factor 1/x (we consider that the rubber band is numbered from 0 to 1 like in the video). If you now wind the band just a bit more so that you reach x+dx (with dx infinitesimal), then the length added on the wheel is dl=a(x)dx. So the total length of the wheel is the integral of dl for x=0.1 to 1 that is int(dx/x, x=0.1..1), which is equal to ln(10).

I was getting there myself, but couldn't put it together. Obviously my cogs don't always mesh.

170

(3 replies, posted in General Discussion)

Yuck, yetch, urgh...

Don't feel so good after viewing that lot!

Compare the relative cleanliness of the Muslims, and of the Jews who were so often blamed for the plague.

I believe there were commissioners in England who came into one's house and took up the dirty floor - it was one of the raw materials for gunpowder. Before the time frame of the photo gallery, I think.

A Mathologer video.
A novel way of demonstrating the circular slide rule - stretch a rubber band round the disk.

Today is about reinventing a really cool mathematical wheel and its many different slide rule incarnations, just using a rubber band.


https://www.youtube.com/watch?v=ZIQQvxSXLhI

https://i.postimg.cc/xJ86Km9J/image-2022-04-07-135315694.png https://i.postimg.cc/WtQknZ2R/image-2022-04-07-134436876.png

172

(5 replies, posted in General Discussion)

But circulars are pamphlets, brochures flyers and the like. No circulars is a common notice to find on a garden gate.

Trouble with going off topic is that people not interested in the OP thread won't read the off topic material, which might interest them if they knew  it was there.

I mean, lots of people are not interested in telling stories in any kind of code, including emoji, while they may be interested in the off topic maths.  but being off topic, it isn't flagged.

174

(5 replies, posted in General Discussion)

Alfred, but then there would be no joke.
Surely, it is the unexpected conjunction which makes (tries to make) it funny.

Of course, none of the topic maths, calculus, belongs in this thread. I opened it to show William some interesting stuff on emoji. It has gone very much astray from the OP topic, and could frighten off anyone interested in emoji etc.