Making a DIY safe

[John Williamson]

Intended. It's not backed up until it's off site, ideally in two separate locations.

[george - dicegeorge]

if you cut a hole in the floor and then dig down and store things in the earth with a few layers of brick / chipboard etc above it then even if the house burns down it may not get very hot.

[g]

[Bill]

In message , george - dicegeorge writes

Just very wet when Trumpton turn up.

[Adam Funk]

That's definitely the most important thing, but it won't help with documents (which you shouldn't be rummaging around to save when your house is on fire).

[Adam Funk]

Didn't someone famous bury a cheese during the Great Fire of London, or is that a myth?

[Andy Dingley]

Samuel Pepys, a whole wheel of parmesan

[Adam Funk]

That's the one, thanks.

[Camdor]

Just remember a few days before you go on holiday, to get the sledge hammer out and excavate the passports.

[Martin Bonner]

I wonder how well parchment copes.

(Baked clay tablets are probably OK to 1000 C or more, provided you cool them carefully afterwards.)

[meow2222]

carefully afterwards.)

Where can I buy a 500GB clay tablet? The ones I have (tiles) only hold a few hundred bits.

NT

[js.b1]

Simplest is a safe, then a media safe inside that. The former provides the brute force resistance and can be fire rated for (s= ay) paper quite cheaply. The latter provides the fire resistance for magnet= ic media (which is to say it stays far below boiling point of water).

Alternatively, just a media safe will do inside whatever box you want.

The problem is not the fire rating of the materials, that is easy re Class =

0, but the temperature rise you get on the inside: getting rid of all that = heat. The method used by the cheap fire safe's from Sentry is a gel saturat= ed with water in the lining. When heated that produces copious amounts of s= team, using the latent heat of vapourisation to give 30mins or whatever fir= e protection. The downside is you need to plastic bag everything inside or = it goes a bit mushy.

Using substances that do not burn or produce an insulating char is one thin= g, eg, bentonite, vermiculite etc; getting rid of the heat in an enclosed s= pace is a bit more difficult as the time for protection goes up.

Simplest may be a floor safe right by the front door.

[SteveW]

carefully afterwards.)

hundred bits.

[Dave Liquorice]

Interesting. Was in CostCo on Saturday they have the Sentry Firesafe F2300 for =A339.58 inc VAT. I bought one at that price, I've yet to look= at it in detail it will be interesting to see what the destructions say about any additional protection required for the contents.

[Owain]

few hundred bits.

If you learn to write in ideographs you can get a lot more useful information per bit. You will however need a higher resolution stylus.

Owain

[Jules Richardson]

Don't forget that they're double-sided...

Of course, you can encode multiple states per 'bit' through the use of symbols - and if they're to be kept in an environment where they won't be susceptible to wear, you can probably get away with encoding at a few different depths, too.

[Jules Richardson]

Yes, every rap mp3 could be represented as a steaming dog turd...

[polygonum]

How would you represent a steaming dog turd?

[djc]

Unicode Character 'PILE OF POO' (U+1F4A9)

[polygonum]

[meow2222]

Even that lot would be unlikely to get you a megabyte. 'To set to read only, place in a hot coal fire overnight'

NT