Vacuum
by A. Semenov
Making something out of nothing.
The new Earth
by A. Stasenko
We must approach global construction with the utmost care.
2adic numbers
by B. Becker, S. Vostokov, and Y. Ionin
Employing Hensel's rational insights.
Departments
Physics Contest: Image charge
by Larry D. Kirkpatrick and Arthur Eisenkraft
Electrostatic inquiry.
Kaleidoscope: The pointed meeting of a triangle's altitudes
by I. F. Sharygin
Various ways of proving a wellknown theorem.
At the Blackboard I: A cardioid for a mushroom picker
by S. Bogdanov
The curvy path of a lost forager.
At the Blackboard II: Electric currents on coulomb hills
by E. Romishevsky
The ups and downs of a circuit.
At the Blackboard III: Completing a tetrahedron
by I. F. Sharygin
A geometrical trick of the trade.
Looking Back: Light in a dark room
by V. Surdin and M. Kartashev
History of the camera obscura.
Cowculations: Contented cows
by Dr. Mu
Finding all ways to sum the digits in a number to zero.
How Do You Figure?: Challenges in Physics and Math
Brainteasers: Just for the Fun of It!
Check out this sample!
Crisscross Science
Scientific crossword puzzle.
Happenings
Bulletin Board.
Answers, Hints & Solutions
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