Pykrete is a WWII-era experimental material made by mixing wood pulp with ice. It's easy to make, easy to work with, and it's bulletproof:
If so, we’d like to humbly suggest that you consider pykrete for all your snow fort construction needs. Pykrete is a composite material made of a mixture of wood pulp and ice. Named for its inventor Geoffrey Pyke, pykrete was an experimental material developed during the mad science heyday of World War II.
At a time when steel was starting to run into short supply, Pyke looked at ice, a material that can be formed for a fraction of the energy cost of steel, as a potential building tool. Early experiments ran into problems — ice is prone to being brittle — but they came across research that showed that if you mixed in cellulose with pure water, that the resulting stuff, when frozen, turned out to be quite durable.
How durable? Let’s put it this way: Would you like a snow fort that is bullet-proof?
How to Make an Indestructible Snow Fort — With Pykrete [Tim Maly/Wired]
I’m making the final(ish*) stop of my Walkaway tour at Defcon this weekend in Las Vegas, giving a speech on Saturday in Track 2 at 10AM called $BIGNUM steps forward, $TRUMPNUM steps back: how can we tell if we’re winning?, followed by a book-signing at the No Starch Press table in the exhibitors’ hall.
In Paper Girls, the celebrated comics creator Brian K Vaughan (Saga, Y: The Last Man, etc) teams up with Cliff Chiang to tell a story that’s like an all-girl Stranger Things, with time-travel.
Ladder lockdown is a metal tray with super-grippy patches on its underside; set it down on any surface (including ice!) and then set your ladder’s feet in the tray and cinch it in place and the ladder won’t “kick out” and injure you and your loved ones.
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