Description: The whole night sky seems to rotate over the course of the night due to the rotation of the Earth around its axis. On a long-exposure photo like one above, this motion becomes apparent in the form of bright trails each star leaves on the camera's sensor.
But if you wonder what to do for 2 hours while your camera is doing its magic, just grab a good book and enjoy camping in the fst on a warm summer night!
by Kristina Dimitrova Kirova
Description: In this picture, the way that the apple has thrown lets you see both the displacement of water and the lifting force of it. Although is looks simple, just an apple thrown into the water, it can be used to explain both displacement of water and lifting force of it.
by Zeynep Buse Şenman
Description: The picture shows the combustion process of a piece of Magnesium ribbon.
Elemental Magnesium is a lightweight, ductile and silver-white metal, which belongs to the second group of the periodic table (these elements are also called alkaline earth metals).
Magnesium is highly flammable and burns releasing a big amount of energy, in the form of heat and a dazzling white light.
For this feature Magnesium powder and filaments were used in flash-lamps and flashbulbs as a flash in the early days of photography.
by Fabio Zheng
Description: This photo shows the Milky Way and numerous number of stars. It was a dream for me to be able to see the Milky Way and stars closely. As a consequence, I took this photo by posing it for approxiametly 25 seconds after I had pinpointed the Milky Way’s location.As you can see, most of the stars look like they are double. This situation demonstrates that the stars are moving. Furthermore, it shows that the Universe consist of miraculous situations.
by Dilay Özalp
Description: Light bends as it passes through different materials. Here it can be seen refracting from air through a solid acrylic semi-circle.
by Donovan Faraoni
Description: The male conducts various pleasing behaviors to drive the female during mating. The male can hit the body or legs of the female, can bite, shake the antennae, produce sounds or vibrate the genitals.
Another example of a sacrifice is the Oncopeltus fasciatuas, which are known as silkweed insects. The mating of these insects may take several hours with the female walking forward and the man walking backwards.
by Sinem Görgülü
Description: The picture shows a bubble on a light bulb, seen from above.
The colors on the membrane are generated by an interference phenomena of the light that hits the surface of the bubble.
Here the light comes from below and seen from a high point of view, the bubble becomes a circle of colors with the source of light in the center
by Marco Sarti
Lightnings are big electric shocks caused by a significant difference of electric potential. They are electrostatic phenomenas, in which the clouds has a negative charge and are attracted by the ground which has a positive charge. When the difference of electric potential is too much, we have the origin of the electric shock that we see as a sudden light trail in the sky. That shock generates also a noisy shockwave that we call "thunder". It comes a bit after the light beacuse we know that the speed of sound is lower than the speed of light.
by Michela Sicuranza
Description: This photo shows a thin membrane of a soap-water solution (bubble solution), the membrane was created with the help of a homemade circle of copper.
The colors on the membrane are generated by an interference phenomena of the light that hits the surface of the membrane.
Each resulting color is the one that has been favored by the interference in a certain area.
by Marco Sarti
Description: In this photograph, we see a very clear example of vegetative reproduction. Vegetative reproduction is a form of asexual reproduction unique to plants. When a plant like this potato is in a suitable condition to reproduce, it can do so without a mate
by İdil Yazıcı