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Cake day: July 4th, 2023

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  • If you are worried, a qualified medical practitioner is always more reliable than a web forum.

    Insufficient or poor quality sleep can cause problems with attention and memory, and can exacerbate existing conditions.

    Poor sleep could be caused by a medical condition (sleep apnoea), or psychological (stress). Often stress can be hard to identify, particularly if it’s long term stress.

    Again, this might not be your problem, and finding the right doctor who actually listens to you is important. Don’t be afraid to try more than 1 doctor if the first makes you uncomfortable.



















  • Historically, electric cars have caught fire much less often than petrol cars (even accounting for the lower number of EV’s on the road). Most of these have been from a single battery manufacturing line and caused by a single misaligned robot that placed the battery terminals too close together. These batteries have all been recalled under warranty.

    There are battery types that are better for grid storage than hydrogen. One of the main drawbacks of hydrogen storage is its low round trip efficiency of around 30%.

    Redox flow batteries are easily scalable, liquid metal batteries have very low maintenance costs and long lifespans, and sodium ion batteries are much cheaper than lithium ion batteries. It will be interesting to see if any of these options make mass market.