There’s something rather vogue about saying of your current employer ‘currently has no physical address’ and listing a URI instead on an application.

define: Student (stu`dent) n.

  • A person who is engaged in or addicted to study. Const. of, in, or with defining word prefixed, indicating the subject studied. Also with adj. of degree, as close, deep, {dag}good, great, hard student.
  • A person who is undergoing a course of study and instruction at a university or other place of higher education or technical training. Also const. of, in (a subject); often with defining word prefixed, as art, law, medical student.
  • An inexperienced user of illegal drugs; spec. one who takes small or occasional doses. U.S. Drug-users’ slang.
  • Not Phil.

It’s the fourth meaning that is especially noteworthy to me at this point.

In closing, here is a Ruby function to calculate Internet Checksum, aka IP Checksum:

def internet_checksum(data)

  sum = 0

  data.unpack("S*").each do | bits |
    sum += bits
    if sum & 0xFFFF0000 != 0
      sum = sum & 0xFFFF
      sum += 1
    end
  end

  # this gets returned
  sum = ~(sum & 0xFFFF)

end