Recent content by Rislam169

  1. Rislam169

    High School What is the cause of Earth's magnetic field?

    I am a student of science.I know that the compus works for magnetic field on earth.But I don't know the actual cause of this magnetic field.Compus always set in north and south direction. Sometime I thing ,Is there any magnetic hill on north or south poll?Or this is the cause of spin of the...
  2. Rislam169

    Insights Measuring How Many Days Are in a Year - Comments

    This is very interesting topic.I never knew that and never thought about that.
  3. Rislam169

    Maximizing Your Learning Potential on the PF Forum as a Science Student

    I am Rafiqul Islam from Dhaka.I am a student of science.I am happy to this forum.I think ,I will learn more from this forum.