A strong wind can extinguish a flame by causing a faster cooling of the fuel and by pushing away the hot air needed for combustion. When the...
The Epupa Falls, located along the Kunene River at the border between Namibia and Angola, represent a site of great cultural and heritage importance for...
When sunlight enters the water, it is bent, causing refraction. The wavelength of blue light is shorter than that of other colors, allowing it to...
Penguins are marine birds that have a morphology adapted to aquatic life. Their streamlined and aerodynamic body is covered with dense feathers that act as...
Fast walking is beneficial for cardiovascular health because it is a moderate-intensity exercise that allows to progressively increase heart rate. By engaging the muscles consistently, fast walking...
Seahorses are fascinating marine creatures in many ways. Their delicate appearance and small size make them fragile and vulnerable beings in the vast ocean. These...
The temperature of the air and the surface of the ground plays a crucial role in how a tennis ball bounces. Indeed, when the temperature...
Japanese samurais used katanas as their main weapon due to their formidable efficiency in close combat. Katanas were single-edged, sharp and curved swords, typically measuring...
The presence of base camps for mountaineers on expeditions can disturb the natural environment of remote areas where these camps are located. Wild animals, accustomed...
Marine bioluminescent organisms are fascinating creatures found in oceans around the world. These organisms have the ability to produce light through specific chemical reactions. Among...
