Any question answered...

Blimey! I was buying stuff from Denny Plastics 40 years ago.

I'm sure Hamar Acrylic have been going that long too. Must be something in the microplastics...

You're right. They have. And Amari as well.

Thanks all - not in London any more, Devon, but Knowing that 20mm is way too thick is already a big help.

Sandi Toksvig can also see UV light.

https://www.theplasticshop.co.uk/clear-perspex-sheet-3mm-4mm-5mm-6mm-8mm-10mm-12mm-15mm-20mm-25mm-thick.html

£37.08 for 5mm×500mm×750mm, £74.17 for 10mm×500mm×750mm which is probably thick enough for your purposes without any framing

Most mammals will do that if you remove their neck and put their head back on.

Did all mine at the post office, they even took the pictures, really simple. Just the payment that hurt lol.

Ours have set times to do this as it takes a bit of time, might need to check your post office.

I think you should contact PADI not the PO.

Just chatting.

Define inferior, as dogs have better motion vision than us. Dogs see TV as flickering while we don't. Cats have better sight at twilight and better motion vision than us.

Is this proof of evolution.....

The smell thing is quite amazing...hence the term wee mail for dogs sniffing other dogs marking stuff

What colours ;)

cutmy.co.uk have always been great for me mail order speaking for sheet plastics, and very helpful either by email or over the phone fwiw. No idea how competitive they are for price but presumably so given that something would have driven my first order with them..

Cats have better sight at twilight and better motion vision than us.

But our colour vision is better.

And we can open a pouch of food.

And we can be manipulated to buy and feed the fur balls.

Yeah, cats are shite at comparing pantone colours. Or colour scales on a Mac.

dogs have better motion vision...Cats have better sight at twilight

But which is better, cats or dogs?
https://www.bbc.co.uk/programmes/p0hbmmdm

Cats are better.

I'll fight you with my army of cats...

https://images.app.goo.gl/VUSwFcTSuxwm8uLS6

Dogs' sense of smell is so good they can effectively use it to see into the past

A dog walking down a street will know what other dogs have been around recently, where they came from and went to, and how long ago. Will be able to tell if they are familiar or new dogs, and loads of information about them including about their emotions and health. Dogs can literally smell fear as well as things like cancer

Their hearing can be pretty insane too. Mine can hear somebody cycling down the road 100m away, from inside the house behind double glazing, and know that it's my wife not some random

Eyesight not as good as ours, even though he's a sighthound

This presumably has profound impacts on their consciousness - their 4D sense on smell will be much more central to their experience of the world than their sight

• can't open a banana though
  

As for hearing, a Labrador can hear you opening the fridge from many rooms away.

Some cats can shoot rubber bands though.

Is it usual for cops to track mobile phones which have been powered off? In 2013 it was said that the NSA was infecting phones with a trojan which does this https://slate.com/technology/2013/07/nsa-can-reportedly-track-cellphones-even-when-they-re-turned-off.html In the recent BBC drama "The Way" it was claimed that even the Welsh police do it.

I’ve no idea if the police etc can track you, but the GPS tracker that Strava etal access can still track your movements if your phone runs out of charge. I went for a walk the other day and my phone died pretty much instantly, but the whole of our 2hr walk was recorded. I don’t know how long it can do this.

Is this something related to the battery technology? Ie the phone won’t work (or stop asking for power) if the voltage in the battery drops to a certain value (smart lithium batteries “cut off” way before zero charge, to avoid becoming unstable).

Maybe the GPS bits don’t require as much voltage or don’t stop asking for power?

It’s worth pointing out that I have no idea what I’m talking about beyond knowing about voltage cut-off in lithium batteries.

Isn't it the cell triangulation that does this rather than GPS

In movies you are meant to snap your phone in half and throw it in a river, but I think the key element is really the sim card