• 0 Posts
  • 31 Comments
Joined 1 year ago
Cake day: July 6th, 2023
  • Dicska@lemmy.worldtoMemes@lemmy.ml•Airport security be like
    4·
    22 days ago

    I’ve watched a video about this recently. The problem is, most detectors were based on X-rays in the past decades. Liquid explosives are pretty close to the density (and/or other properties) of water, and you can’t tell for sure whether there’s toothpaste or boom juice in that tube.

    However, some airports started using expensive MRI MRI like X-ray* machines that can see stuff in more detail, plus, it lets you to make cross sections from different angles and therefore have a 3D model that you can rotate on your screen (it’s rather cool).

    EDIT: I just realised someone else linked this, too. I would leave it here, it’s still educational.

  • Dicska@lemmy.worldtoScience Memes@mander.xyz•Every base is base 10English
    1·
    1 month ago

    I never argued that. I wasn’t even talking about the word ‘ten’ in English but the usefulness of the word ‘ten’ in base 4.

    EDIT: I see where you’re coming from: base 10 English also has a unique name for something that is not 0-9 or a power of 10 - however, the only reason to this is that they are from base 12. Obviously base 12 has unique words for numbers below the base. But not numbers above it (apart from maybe powers of 12). Which further proves the point.

  • Dicska@lemmy.worldtoScience Memes@mander.xyz•Every base is base 10English
    14·
    1 month ago

    “ten” is a fixed amount in base 10. A base 4 user may have an entirely different naming system for numbers above 3, so “ten” (which is written as 22 in base 4) could be twenty two, twoty two, dbgluqboq, or Janet. But similarly to how we don’t have a single syllable, dedicated number name for decimal 22 (as in, it’s composed of the number names ‘twenty’ and ‘two’), they may not have a single syllable, dedicated number name for decimal 10 (which is ‘22’ in base 4).