Zebra saves her little one from a lion attack A young zebra is attacked by a lioness in Masai Mara National Park in Kenya, but her mother quickly comes to her rescue and frees her from the teeth of the lioness.
When you are devastated but you have to keep working A little girl in China cries constantly during a school performance, but follows exactly her dance. As if this were not enough, she will also have an accident with her costume towards the end of the video.
A little sleepy A Pekingese dog is barely holding on to its legs, since he seems to be very tired.
Bull attacks ATV On a trail in New Zealand, a bull he faces a farmer leading a sow.
Water cannon against protester in Turkey On Sunday June 28, 2015 in Istanbul, the Gay Pride. Thousands of protesters had arranged to meet at the center of the capital to March peacefully, but the Turkish police had another view. Riot police forcibly dissolve the protesters, who chanted slogans denouncing the "fascism" of the present Government, with tear gas, water cannons and plastic bullets. In the video, seeing a protester being slung from a water cannon and falls violently into the ground. The 12 Gay Pride events that took place in previous years had passed without incident.
The change in global temperature from 1880 to 2011 A thermal map of the Earth from the NASA, showing the change in temperature over 130 years, from 1880 until 2011. The temperature increase is about 4 degrees Celsius.
The hot chocolate effect The hot chocolate effect, is a phenomenon that is reproduced by stirring a hot liquid and adding soluble powder. Tap the edge of the cup repeatedly one by one the spoon, we notice that the sound produced has an increasingly louder tone. This effect is explained by fluctuations in the speed of sound in the liquid, due to the presence of gas bubbles. The wavelength of this sound that is heard, determined by the size of the cup, and the frequency of sound depends on its velocity in the liquid. The presence of air bubbles in the liquid significantly reduces this speed. So the sound sounds more bass (lower frequency) with bubbles, and thinner (higher frequency)when there are no bubbles.