The oldest weapons of mankind are probably 300,000 years old. In 1994, wooden javelins were discovered in Schöningen in Lower Saxony. Their discovery radically changed our view of human evolution. Author: ZDF / Terra X / Film Produktion Stein e.K./Alexander Hogh / Martin Papirowski / Timm Westen,
Sea level can deviate regionally from the global mean. Wind and currents push the water masses differently against the coasts and influence the level there. In addition, the earth's crust moves. Some coasts rise, others sink. Author: 3sat/nano/mobyDOK/Alexander Lahl/Max Mönch/Jean Schablin/Robert
In this video, we will look at the state symbols (s), (l), (g), and (aq) and what they represent in a chemical equation. For equations to be complete, we must also include the state symbol for each reactant and product. There are four possible states, each with their own unique state symbol. So
Sadhguru explains that what the body needs is rest, and not necessarily sleep. If the body is at ease while you are awake, the sleep quota will go down. He also looks at how the quality of sleep is connected to the quality of life. If you wake up well, you will sleep well he says. Sadhguru Talks @
Are you feeling insecure about yourself? We all have moments of insecurity, whether it is caused by rejection or difficult situations. But, feeling insecure even after can take a toll on your emotional and physical well-being. In the long-run, personal insecurities may keep you from romantic relatio
Click here to see more videos: https://alugha.com/mysimpleshow Graphene and Internet of Things? To ensure a future lifestyle where a high level of interconnectivity makes our daily lives safer and more efficient, we need new solutions for faster transmissions, lower energy consumption and small, fl
An acid is a substance that will dissociate in water to give a proton (or H+ ion) and a conjugate base. An acid is considered to be strong if dissociation nears 100%, and weak if dissociation is usually less than 1%. In this lesson, we will learn about strong alkalis and weak alkalis. An alkali
Photosynthesis is a chemical reaction that is fundamental to life. In this video we are going to have a look at the factors that affect the rate of photosynthesis. There are 3 main factors: light intensity, carbon dioxide concentration and also temperature. These factors are called limiting fact
When a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals of the same species show a range of variations. Some individ
As populations have grown, farming practices have become more intensified to maximise crop yields and ensure we can feed the ever growing population. Fertilisers and pesticides are used on crops, and animals may be kept inside in more densely packed sheds to maximise milk yields, or egg production,
This video highlights the importance of energy-efficient lighting. Energy efficient lighting is necessary to reduce electricity consumption and to lower greenhouse emissions. Every household, business and institution can contribute by replacing fixtures with energy efficient bulbs to save electricit
Are you curious about what makes you not so attractive to someone? What holds you back from success with dating? We got you covered. In this video. Find out what lowers your chance with a date. #psych2to #dating #attraction Transcript for your readings including reputable sources for each of the
