Good people of Britain...........PANIC

[Tony Towner]

Gain a new fact one day and lose it the next

 

[AndyWolves]

#GrowthMindset

 

[Tom Hark]

So I've done some reading, and it seems fires can sometimes just start on their own. But I don't understand how the sun alone can take something up to the ignition point of dry wood / grass which is about 300 degrees. Can anyone explain?

Magnification through glass, plastic, water droplets? Does, e.g., paper ignite at a lower temperature?

 

[b3h]

So I've done some reading, and it seems fires can sometimes just start on their own. But I don't understand how the sun alone can take something up to the ignition point of dry wood / grass which is about 300 degrees. Can anyone explain?

Maybe like grass and dead matter acting like a compost pile where it can get really hot underneath?

You have me sat here wondering where the spark comes from though

 

[b3h]

Magnification through glass, plastic, water droplets?

First 2 are man made innit

 

[MARKakaJIM]

Maybe like grass and dead matter acting like a compost pile where it can get really hot underneath?

You have me sat here wondering where the spark comes from though

Don't believe Bruce Springsteen.

 

[MARKakaJIM]

Magnification through glass, plastic, water droplets? Does, e.g., paper ignite at a lower temperature?

Reflection off a concave surface can give the same concentration of energy as through a lens.

 

[AndyWolves]

Reflection off a concave surface can give the same concentration of energy as through a lens.

Where do you find a concave surface in nature though?

 

[MARKakaJIM]

Where do you find a concave surface in nature though?

You've never seen a natural concave surface?

 

[AndyWolves]

You've never seen a natural concave surface?

I can honestly say that I can't recall ever seeing a surface which looked concave enough and shiny enough to be a fire hazard.

 

[nimrod]

Maybe like grass and dead matter acting like a compost pile where it can get really hot underneath?

You have me sat here wondering where the spark comes from though

wood dust is a big fire risk. considered potentially explosive in wood stores. whilst presumably far less concentrated in the open air but there must be small particles that might alight in hot conditions? friction against other small particles?

 

[Sniffer]

The record has already gone.

39.1 has been recorded in Surrey today.

 

[Tredman]

Thank god someone changed the subject

 

[MARKakaJIM]

I can honestly say that I can't recall ever seeing a surface which looked concave enough and shiny enough to be a fire hazard.

Things don't have to be shiny to reflect, it doesn't need to be a perfect curve to reflect things back to a more concentrated area.

Your thinking is far too influenced by human invention, all of the man made objects you're thinking of are refinements of things that exist in nature to maximise the effect they have and thus be consistently useful to us.

 

[Mel Evo]

I can honestly say that I can't recall ever seeing a surface which looked concave enough and shiny enough to be a fire hazard.

David Cameron’s chin.

 

[EpsomWolf]

The record has already gone.

39.1 has been recorded in Surrey today.

To be honest I’m surprised at that. Charlwood is about 15 miles south of here next to Gatwick and looking at the maps the predictions are for the hottest spots to be further north, probably much closer to a lot of you guys.

Currently 37 which is 4 degrees warmer than this time yesterday and it certainly feels like it’s still getting hotter, but wouldn’t be surprised if the peak went way past that somewhere else later today.

 

[Doctor Doog]

The record has already gone.

39.1 has been recorded in Surrey today.

Obviously following Epsom(Cambridge) Wolf around

 

[leedswolf]

Maybe like grass and dead matter acting like a compost pile where it can get really hot underneath?

You have me sat here wondering where the spark comes from though

You don't need a spark...

 

[AndyWolves]

Things don't have to be shiny to reflect, it doesn't need to be a perfect curve to reflect things back to a more concentrated area.

Your thinking is far too influenced by human invention, all of the man made objects you're thinking of are refinements of things that exist in nature to maximise the effect they have and thus be consistently useful to us.

It's going to have to be fairly shiny and fairly concentrated to start a fire. I watch loads of shite on YouTube, what used to be discovery etc and never heard of this. Is there anything out there where the cause has been identified as something like this?

 

[EpsomWolf]

Obviously following Epsom(Cambridge) Wolf around

Ha, yes, there were rumours of the record going in Cambridge in 2019 so a lot of people headed up to the botanical gardens where the measurements were taken, in that weird ‘might be able to experience a bit of history’ kind of way. Must admit it was ferocious that day but then again it was in most places, the odd degree or so at that level doesn’t seem to make much difference.

Anyway, as a fair skinned person this ain’t no fun, I’m willing it north as we speak.