Helium Weather Balloons A weather balloon is a scientific instrument used by meteorologists to measure the activity of the world’s weather. Weather balloons are sent into the air every day‚ all over the world; they are sent up at the same time‚ and they are used to measure a variety of atmospheric pressures‚ temperatures‚ and wind rates. The data collected by weather balloons is saved and transmitted by the radiosonde. Sensors in the radiosonde record data and use a radio transmitter to send
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"How Is Helium Produced?" Production: Although Helium is one of the most common elements in the universe it is a rare gas on earth. It exists in the atmosphere in such small quantities (less than five parts per million) that recovering it from the air is uneconomical. Helium is produced as a by-product of the refining of natural gas‚ which is carried out on a commercial scale in the USA and Poland. In these areas natural gas contains a relatively high concentration of Helium which has accumulated
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HELIUM CONTENTS INTRODUCTION………………….….…………………… PROPERTIES……………………………….……………… OCCURRENCE…………………………………………… USES………………..……………………………………… BIBLIOGRAPHY……...…………………………………… INTRODUCTION Heliums name comes from the Greek word “helios”‚ meaning sun. Helium is odourless and colourless and remains as a gas at room temperature; this chemical element is abbreviated as He. Helium has two protons in its nucleus whereas the atomic number of helium is 2 and is listed in group VIII of the periodic
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Although Helium exists in the atmosphere of Earth in small quantities‚ it is one of the most common element in the universe. It is a rare gas on earth. Helium was first discovered by Pierre Janssen in the spectrum of the sun during an eclipse in 1868. It was shortly identified as an element and was named by the chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer. Helium has an atomic number of 2 and an atomic weight of 4.002602. Helium is represented by the symbol
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General Chemistry Paper on Chemical Elements: Helium Jensen Vu Rabun Gap-Nacochee School Helium is an element in the periodic table. It has the symbol He and an atomic number of 2. Its average atomic mass is about 4.002602 u. There are 7 known isoptopes of helium‚ bearing the electron configuration 1s2. The ionic radius of this element is 93 pm. Helium was first observed and found by French astronomer Pierre Jules César Janssen along with the scientist Joseph Norman Lockyer in 1868‚ adding one
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Beginning with Science 05: Atomic Structure and Forces Choose an element from the periodic table to interview. Consult your teacher for approval. (2 points) The element I selected is: Helium Conduct research on your element. Use the following as a guide for the kind of information you need to learn about your element to successfully complete the assignment. (14 points) Atomic number 2 Atomic mass 4.002602 ± 0.000002 u Symbol He Number of subatomic particles 2 protons
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business of balloons A typical balloon seller on the street may not grab your attention but the product he sells has more than just air. Balloons are used for decoration‚ in advertisements and for adventure sports‚ and this has led to a booming business of this product that was once only for children. The Business There are multiple types of balloons available in the market for different purposes. Celebration balloons‚ toy and novelty balloons‚ decoration balloons‚ and advertisement balloons are some
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* Students launch Malaysia’s first weather balloon to Near Space * On 17th of March a group of high school students launch a weather balloon to up to 80‚000feet in the stratosphere to capture a glimpse of earth from near space. The launch is believed to be first of its kind in Malaysia. * This group consist of 8 passionate students from Hin Hua High School‚ they launched a weather balloon equipped with gps navigating systems & a digital camera to stratosphere at Sabak Bernam on
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Helium Leak Detection Principles Helium Leak Detector vs Pressure Decay Leak Detection Faster The Helium Leak Detection Method utilizing a sniffer probe registers leaks with a response time of approximately one second. Dry The Helium Leak test method is totally dry. There is no soap bubble residue or water droplets to clean and dry after testing. The costs associated with cleaning supplies and drying equipment can be eliminated‚ along with the mess and unpleasantness of running a bubble
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clothes mummy wore. She would be like mummy when she was older. “Sweetie‚ do you want a balloon?” She looked at where her mummy was pointing. An old wrinkly man stood there‚ holding a bunch of balloons of all shapes and sizes and colours. He looked like a garden gnome. She smiled and nodded. Her mummy smiled back‚ her teeth all yellow. Teeth were supposed to be white. “Take yourself off and buy a balloon then.” Her mummy gave her a small coin‚ before turning back to her friend. Wrinkling up her
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