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Cake day: June 12th, 2023

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  • Reinforced autoclaved aerated concrete (RAAC) is a lightweight material that was used mostly in flat roofing, but also in floors and walls, between the 1950s and 1990s.

    It is a cheaper alternative to standard concrete, is quicker to produce and easier to install.

    It is aerated, or “bubbly”, like an Aero chocolate bar.

    But it is less durable and has a lifespan of around 30 years.

    Its structural behaviour differs significantly from traditional reinforced concrete.

    Moreover, it is susceptible to structural failure when exposed to moisture. The bubbles can allow water to enter the material.

    If that happens, any rebar reinforcing RAAC can also decay, rust and weaken.

    Because of this, RAAC is often coated with another material, such as bitumen on roofing panels. But this material can also degrade. Source

    This is an international issue btw.




















  • I think you forget that women and children still don’t have enough power, at any age, to deny any man what he wants. They still die doing that, or are beaten within an inch of their lives, or are fired/written up for refusing sexual advances, or are put in situations where they’ve received no training but have to run a dangerous machine anyway.

    That is not something any child should ‘have’ to learn.

    How about instead we crack down on the businesses that do shit like that … maybe 1st offense they lose their business … 2nd offense they lose their life.



















  • Lenin once observed that “there are decades where nothing happens; and there are weeks where decades happen”. The invasion of Ukraine by the Russian Federation on February the 24th 2022 was one of those moments. Within days France and Germany lost their ascendancy, Poland and Britain came to the fore, the Baltic and Scandinavian countries gravitated towards the new coalition, leaving Germany isolated within northern Europe, with southern Europe reduced to the status of sullen onlookers.

    The Russian invasion was the trigger that finally shattered a thirty five year consensus in Europe. It happened, as Hemingway describes in The Sun Also Rises, like bankruptcy: gradually and then suddenly. This crisis has been building for years, but we are now moving fast.

    Best take I’ve read on the last two years.