Which Hogwarts house will you be sorted into?
When NASA
first started sending up astronauts, they quickly discovered that
ballpoint pens would not work in zero gravity. To combat the
problem, NASA scientists spent a decade and $12 billion to
develop a pen that writes in zero gravity, upside down,
underwater, on almost any surface, and at temperatures ranging
from below freezing to 300 degrees Celsius.
The Russians used a pencil.