Any question answered...

Abe books

Thanks!

Looks like half of it fell off.

https://youtu.be/3m5qxZm_JqM

Ha that's good, thanks!

It's been years since I've had to port over a number to a new network. Is it normal for the old SIM to stop working waaay before the new one receives the number? I'm a bit fucked right now because I can't use 2-step verification to log in to a few things and people have been saying they've been trying to get hold of me with no luck.

yeah, i might risk the ES600... especially as they are cheaper than the A600, but still have the metal bearing gubbins. just seems odd I can literally only find one proper review.

A600 only got reviews when gravel got trendy so not surprised the ES600 has not got anything yet.

Abebooks/alibris/bookfinder.com?

If you want bricks and mortar I'd try the Gower Street Waterstones (big second-hand department), or Skoob Books in the Brunswick Centre; sadly a lot of the specialist second-hand shops have closed or gone online only in the past decade, but it might also we worth wandering into the couple that remain on Charing X Rd and in Cecil Court.

Is it normal for the old SIM to stop working waaay before the new one receives the number?

How many As in waaay? Transfer should complete inside 24h, pretty sure it's gone much quicker than that the last couple of times I've done it.

However I took several pictures on that evening, including children in the playground round the corner in St Stephen's Gardens, on the same neg strip. So that's where my shot is for sure.

Do we have any TRIM (records management) experts on here? A lucrative job opportunity has popped up, I'm gonna go for it if I can get up to speed in time...

Geometry:

If I know the blue angle, then if I know how far up the vertical line I've moved, can I work out the red angle (without measuring) ie if I go up 50% is the angle to the original point now 30deg?

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Is that saying the blue angle is always 60 degrees? Because if so, if you go up 50%, the red line will be horizontal, i.e. bearing is 90 degrees, and when you get to your circumference, the inside angle will be 60 degrees again, so bearing is 120 degrees.

Also, this looks like a complicated away to avoid the dog turd at bottom left.

Provided you know the radius of the circle, then yes. We can imagine a right-angled triangle where the blue line is the hypotenuse. We can then work out the length of the adjacent side using the sine function, as the sine of the angle A is the opposite over the y=hypotenuse. So if

sin(A)=opp/r where r is the radius then

opp=sin(A)*r

The cosine function gives us the adajcent angle:

adj=cos(A)*r

You can then apply your multiplier to the length of the adjacent side of the RAT with the blue line as the hypotenuse. If you're moving 50% up the radius then you'd have to work out what percentage that is of the length of the adjacent side, and then calculate the length of the adjacent length of the notional right-angled triangle with the red line as the hypotenuse.

Then the tan function of the red angle would be that adjacent length divided by the opposite length calculated earlier. Give us some numbers and I'll do a worked example if that would help.

OK I've got an 400mm radius semicircle, and I want to mark points on the edge at (for example) 15,30,45,60,75 degrees.

I then want to move up the vertical by (say) 200mm and draw lines to these same points. The angles to the same points from the new position is the required answer.

OK, so r is 400mm and let's say that A is 30 degrees.

In that case, sin(30) is 0.5 so the opposite angle of the RAT with the blue line as the H is 200mm.
The A length is 346mm.

If you move the start point of the red line up by 200mm that means the A length of the RAT with red as the H is now 146mm. The angle B can be calculated as

tab(b)=200/146, so angle B is 53.9 degrees.

Cool, thanks. I should be able to put that into a little excel workbook

In case you're interested, it's for a set of shelving, here's a model of it.

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Does anyone have any experience of Miche Evo Max cranks/bottom brackets?

Essentially I'm wondering whether one of these**(that I already have, sans BB) will strictly need an Evo Max BB, or will be compatible with, say, a Hollowtech II BB. I'm seeing conflicting reports online...

** I have no idea what a 'Game of Arms' is either, but I wish they would hurry up and air the next series.

I have one of those cranks, and couldn't get it to play ball with a normal htII BB. Got the Miche BB and now works.
Some say it works with HT II though, you don't have an old BB lying around to try first?

I've got a 1200km gpx file I'd like to split into 12 100km files: any simple way to do this?

I'm building up a Bowman Palace (first Gen, not R)
Seems to need a mega deep (circa 40mm) brake nut for the front brake, does anyone know where to get a normal one (Rather than £10 Ti) 40mm Brake nut?

Jon

Lbs- best bet

I think I got some from Bike24 or one of those similar sites too. worth checking SJS as well

Can also get them quite cheap from eBay

where to get a normal one (Rather than £10 Ti) 40mm Brake nut?

The longest steel one I can find is 35mm . If you really need 40mm and somebody has a 40mm Ti to sell you, £10 seems fair