Gravity is a force that attracts objects towards each other. It is gravity that keeps us on the ground, when we jump up gravity pulls us back down towards the centre of the Earth. A force is either a push or a pull, forces can make objects speed up, slow down or change direction. Make paper spinners and watch them spin as they drop to ground.
Investigate gravity with easy straw rockets. Get a craft stick to balance on a chopstick like Rookie Parenting. Can you make a list of activities that need gravity to make them work? Rollercoasters would be one.. Try one of our 10 easy magnetism investigations. Apr 8, Explanation: Some cultural examples might be: high wire trapeze artists who appear to "defy gravity" or magicians how appear to "defy gravity" by floating someone in mid-air unsupported.
Related questions Does gravitational force get weaker with distance? How strong is gravitational force? How does cosmic background radiation change the universe? How does gravity affect the universe? What does red shift mean? The tenacity of an arachnid inspired Robert the Bruce, but its sticking power could also inspire new adhesives, according to the journal Smart Materials and Structures, published by the Institute of Physics in London.
What makes the spider stick are , setules - tiny hairs on the ends of hairs - agents of what are known as Van der Waals forces. The spider is the latest focus of biomimetics - study of engineering techniques evolved in nature.
Seashells and lotus leaves have led to new strong materials and self-cleaning windows.
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