ddkto

6 ms·

31.
by ddkto 5y ago
Epoxy coating is falling out of favour, as it has two downsides: 1) is has a weaker bond to the concrete, so you need longer bars to transfer the force, and 2) if it gets damaged (scratched or cut), the corrosion will concentrate at that lo
32.
by ddkto 5y ago
This is fascinating > a supershear strike-slip earthquake that occurs beneath a narrow, shallow bay can trigger a massive tsunami Basically, the horizontal shock waves from the fault are reflected vertically by the shape of the ground, w
33.
by ddkto 5y ago
when people actually care about protecting the starter bars (exposed rebar to star the next floor), you can cast a very weak concrete (1-2 MPa crushing strength) around them. When construction continues, you just chip out the weak concrete,
34.
by ddkto 6y ago
There is a similarity to the work of Charles and Ray Eames. Though motivated by the possibilities of mass-manufacture, but still produced many designs that could not be produced cost-effectively at scale. Their aims for mass-manufactured, w
35.
by ddkto 6y ago
Central banks are keeping a close eye on it, so I think we’ve crossed the ‘remotely plausible’ line: “Earlier this year, Deputy Governor Tim Lane spoke about the circumstances when it might make sense for the Bank of Canada to issue our own
36.
by ddkto 9y ago
Robin Dunbar’s papers are very clear and accessible. If you find the concept of Dunbar’s number interesting, I recommend you have a look at his other papers - lots of interesting concepts!! https://www.psy.ox.ac.uk/research&
37.
by ddkto 9y ago
This sentiment is further eloborated in the book "Disciplined Minds" - http://disciplinedminds.tripod.com/ I highly recommend it.
38.
The Sharing Economy in Canada(statcan.gc.ca)
1 points by ddkto 10y ago|0 comments