You may select a new search term and repeat your search. Searches are not case sensitive, and you can use regular expressions in your queries.

Enter your search term: by: title, keyword, or contextually

Query was: middle

Here are the matching lines in their respective documents. Select one of the highlighted words in the matching lines below to jump to that point in the document.

• Title: Third Lecture (First Scientific Lecture-Course)
  Matching lines:
  • into greenish shades. In the middle it stays white.
  • circle that the colours extend inward from the edges to the middle.
  • They then overlap in the middle and form what we call a continuous
  • case, above and below — and a violet colour in the middle.
  • violet, I now get the outer edges red, with violet in the middle and
  • arise — coloured at the edges, coloured in the middle too, and
  • middle, — the opposite of what it was before. There would again
  • IIIb). The other was thick in the middle and thin at the edges;
  • this one is thin in the middle and thick at the edge. Using this
  • the middle), the entire cylinder of light will have been thrust
  • matter than in the middle, where it has less matter to go through.
  • that it has less matter to go through in the middle and more at the
  • edges. Think of it now. In the middle the light has less matter to go
  • where it goes through more. It is the stronger force in the middle,
  • path the light has to go through in the middle of the lens than at
  • the edge. Due to the shorter path in the middle, the light retains
  • from it. The stronger light in the middle presses upon the weaker
  • black circle in the middle of the disc, so that the grey may appear
• Title: Fourth Lecture (First Scientific Lecture-Course)
  Matching lines:
  • a black strip in the middle and look at this through a prism, —
  • IVk), — mauve in the middle, and on the one side merging
• Title: Fifth Lecture (First Scientific Lecture-Course)
  Matching lines:
  • divided into two portions; the middle part is blotted out. You only