simple science


Simple Science

Burning or Oxidation:
In estimating the quantity of air necessary to keep a room well aired, we must take into account the number of lights (electric lights do not count) to be used, and the number of people to occupy the room. The average house should provide at the minimum 600 cubic feet of space for each person, and in addition, arrangements for allowing at least 300 cubic feet of fresh air per person to enter every hour.

In houses which have not a ventilating system, the air should be kept fresh by intelligent action in the opening of doors and windows; and since relatively few houses are equipped with a satisfactory system, the following suggestions relative to intelligent ventilation are offered.

1. Avoid drafts in ventilation.

2. Ventilate on the sheltered side of the house. If the wind is blowing from the north, open south windows.

The Relation between Pressure and Volume
Patent Medicines Cough Sirups
Why Objects are Visible
Air Pressure
How Electricity may be lost to Use
General Truths
How Variety of Color is Secured
Chandelier Crystals and Prisms
Electricity as first Obtained by Man
More ...

  • Test your English Language
  • Innovative Kitchen Tools and Gadgets
  • Rules to play Trampolining
  • Rules to play Ice Hockey
  • Myth about AIDS
  • Weird Ghost Stories
  • Amazing Dances From Around The World
  • Get Stylish Hair
  • Management Mantras
  • Most Stylish Airports In The World
  • Most Valuable Sports Teams in the World