Top 10 physics facts Selected as the most interesting among physics related questions in Physics quiz Does the candle burn more or less violently in zero gravity?Less violently. In zero gravity no convection occurs, that normally shapes the flame, disperses CO2 and brings fresh air to the wick. Without convection, CO2 from combustion does not disperse as readily and tends to smother the flameCreated by: Kasiaastronautics facts » How do baby birds get oxygen inside their eggs?Oxygen comes in through pores in the shell. Directly under the shell, there is a small pocket of air. The microscopic pores on the egg surface allow the CO2 to escape and fresh air to get in, so a developing bird can breathe.Created by: Kasiahard simple questions facts » This is the aurora of Jupiter. What are the visible bright spots caused by?Jupiter moons. Jupiter's moons, especially Io (spot on the left), are powerful sources of auroras on Jupiter. These arise from electric currents along field lines, generated by a dynamo mechanism due to the relative motion between the rotating planet and the moving moon.Created by: globalquiz.orgplanets facts » When is the Eiffel Tower the highest?July-August. The tower stands 320 meters (1,050 ft) tall, about the same height as an 81-storey building. Because of thermal expansion, the height varies by 15 cm (5.9 in) due to temperature.Created by: Steve Lambertytowers facts » Why do cats have vertical pupils?To better see in the dark. The sharpest image is produced by round pupils, and if cats weren’t nocturnal, they probably would have round pupils like us. But the vertical pupil, in combination with horizontal eyelids, gives the cat greater and more accurate control in different types of lighting. A cat may adjust the amount of light by moving eyelids only.Created by: globalquiz.orgoptics facts » What was offered to Albert Einstein in 1952?Presidency of Israel. In 1952, Prime Minister David Ben-Gurion offered Einstein the position of President of Israel to Albert Einstein, after the death of Israel's first president, Chaim Weizmann. Einstein, then aged 73, refused: "I lack both the natural aptitude and the experience to deal properly with people". He died three years later.Created by: globalquiz.orgJews facts » What is the main reason to have dimples on the golf ball?Improvement of aerodynamics. Since the 17th century, the best golf balls were made of stitched feathers. The stitches mimicked the effects of dimples, therefore, the need for a layer of turbulence around the ball was not discovered until much later.Created by: Kasiasport facts » How does the candle flame look like in zero gravity?It is spherical. The shape of flame is created by convection under normal gravity conditions. Without gravity, no convection occurs and the flame becomes spherical.Created by: Kasiachemistry facts » Why are gliders almost always painted white?To reduce solar heating. Since fiberglass resin softens at high temperatures, white is used almost universally to reduce the temperature rise caused by solar heating. Less popular non-fiberglass gliders (those made of aluminum and wood) can be painted any color.Created by: Kasiaaviation facts » This is an iron buoy. Where were its atoms formed?In a high-mass star preceding Sun. Radioactive nickel-56 (which decays to the most common isotope of iron) is the last element to be produced before the collapse of a supernova. That is why the iron was abundantly scattered into space after the supernova explosion.Created by: life-o-holicelements facts » Play physics quiz and see all the questions.