phenomena such as meniscus‚ surface tension and capillary action. Mercury in a glass flask is a good example of the effects of the ratio between cohesive and adhesive forces. Because of its high cohesion and low adhesion to the glass‚ mercury does not spread out to cover the bottom of the flask ‚ and if enough is placed in the flask to cover the bottom‚ it exhibits a strongly convex meniscus‚ where the meniscus of water is concave . Mercury will not wet the glass‚ unlike water and many other liquids
Premium Liquid
Environmental Effect from the Gold Rush Every tribe‚ city and nation has its own story that gives it a defining trait and our state of California is no different. Most people know that California is also known as the “Golden State”‚ but among all the reasons that gave it this name‚ aside from the unlimited sunshine throughout the year‚ the Gold Rush back in the mid 19th century is probably the most significant one of all. Most would agree that the Gold Rush was a positive‚ iconic event in California’s
Premium California Gold Rush Mining
planet. Table 1: Measured Astronomical Distances in Solar System (*KBO radii are not well known) |Object |Radius (km) |semi-major axis (km) | |Sun |6.96 x 105 |-- | |Mercury |2.44 x 103 |5.83 x 107 | |Venus |6.05 x 103 |1.08 x 108 | |Earth |6.38 x 103 |1.50 x 108 | |Moon |1.74 x 103
Premium Solar System Sun Moon
We live in this beautiful world which is an ultimate creation of the Almighty. But this usual world has got some unusual problems and those problems are created by us. We claim the world as our own but we can’t make its environment a fresh one. Because we are always busy making it polluted and giving it a harsh feedback. But now it’s the time to change this habit and sustain the world’s worst situation and give a ray of hope of survival. The topic of Green Technology helps this cause. Because the
Premium Green building Building engineering Environment
There are many social problems that are occurring in America today. One social problem that resonates with me is global warming and our environment. There are many reasons why our environment is the way it is today‚ and there are also many ways in which we can fix it. You also have to remember that while some environmental problems are beyond human control‚ such as volcanoes and earthquakes‚ most are social in origin (Eitzen‚ 85). There are many social forces that are disturbing our environment
Premium
Part Ca)Up until the 1940’s rubber had only been obtained from the latex of rubber trees(Hevea brasiliensis) in plantations situated in tropical areas such as Malaya and Burma. The demand for rubber increased significantly during world war 2 as rubber was needed for tyres of military vehicles and the supply was interrupted by the conflict between the countries. Scientists in Germany and the US developed synthetic polymers that could replace rubber. Even after the war ended the traditional sources
Premium Sodium Sodium chloride Sodium hydroxide
Research Argument Essay In today’s world‚ people are more concerned about saving the environment than they have been in the past‚ and the choices that they make today about the light bulbs in their homes can play an important role in the future of the environment. Light bulbs are an every day object in homes across the World today and range from the less energy efficient incandescent light bulbs (normal light bulbs)‚ the more energy efficient compact fluorescent light (CFL) bulbs‚ and the most
Premium Incandescent light bulb Fluorescent lamp
you agree with Japanese‚ or do you disagree? What are your reasons for your opinion? I strongly disagree. * Dolphins have very high mercury levels * Mercury is a known cause of birth effects * In 2010‚ hair samples from 1‚137 Taiji residents was tested for mercury by the National Institute for Minimata Disease. The average amount of methyl mercury found in the hair samples was 11.0 parts per million for men and 6.63 ppm for women‚ compared with an average of 2.47 ppm for men and
Premium Cetacea Humpback whale Dolphin
such as sodium vapour lamp‚ mercury vapour lamp‚ neon gas lamp. 2) Those which use the phenomenon of fluorescence and are known as fluorescent lamps. In these lamps‚ the discharge through the vapour produces ultraviolet waves which cause fluorescence in certain materials called the phosphorus. The inside of lamp is coated with phosphor which absorbs invisible ultra-violet rays and radiates visible rays. Example: Fluorescent mercury-vapour lamp. High pressure mercury vapour lamp:
Premium Fluorescent lamp Incandescent light bulb
must be followed in a chronological order in order to achieve an accurate calculation. The first step is to gather all the equipment. The equipment includes a stethoscope and an arm cuff. Attached to the arm cuff is a rubber bulb and a column of mercury. Once the nurse gathers this equipment‚ she/he will then need to find and identify their patient. The nurse will then put the arm cuff on the patient‚ but not too tightly. The arm cuff can go on either arm as long as it is above the elbow and on bare
Premium Blood pressure