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Screaming Jelly Babies
"Screaming Jelly Babies" (British English), also known as "Growling Gummy Bears" (American english, American and Canadian English), is one classroom chemistry demonstration variants of which are practised in schools around the world. It is often used at Open house (school), open evenings to demonstrate the more light-hearted side of secondary school science. The experiment shows the amount of energy there is in one piece of confectionery; jelly baby, jelly babies, or gummy bears, are often used for theatrics. Potassium chlorate, a strong Oxidizing, oxidising agent rapidly oxidises the sugar in the candy causing it to burst into flames producing a "screaming" sound as rapidly expanding gases are emitted from the test tube. The aroma of candy floss (cotton candy) is also given off. Researchers in Japan developed a new Headset (audio), headset in December 2011 that triggers different sounds as wearers close their jaws when eating which included the "Broken heart, heart breaking" sq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Screaming Gummy Bear (chlorate) Abridged
A scream is a loud speech production, vocalization in which air is passed through the vocal cords with greater force than is used in regular or close-distance vocalisation. This can be performed by any creature possessing lungs, including humans. A scream is often an instinctive or reflex action, with a strong emotional aspect, like fear, pain, annoyance, Surprise (emotion), surprise, joy, wikt:excitement, excitement, anger, etc. Troponyms A large number of words exist to describe the act of making loud vocalizations, whether intentionally or in response to stimuli, and with specific nuances. For example, an early twentieth century synonym guide places variations under the heading of "call", and includes synonyms such as: bawl, bellow, clamor, cry (out), ejaculate, exclaim, roar, scream, shout, shriek, vociferate, and yell, each with its own implications.James Champlin Fernald, "Call", ''English Synonyms and Antonyms: With Notes on the Correct Use of Prepositions" (1914), p. 13 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candy Floss
Cotton candy, also known as fairy floss and candy floss, is a spun sugar confection that resembles cotton. It usually contains small amounts of flavoring or food coloring. It is made by heating and liquefying sugar, and spinning it centrifugally through minute holes, causing it to rapidly cool and re-solidify into fine strands. It is often sold at fairs, circuses, carnivals, and festivals, served in a plastic bag, on a stick, or on a paper cone. It is made and sold globally, as candy floss in the UK, Ireland, Egypt, India (also known as grandma's hair), New Zealand, Sri Lanka, and South Africa; as "girls hair" in United Arab Emirates, and Saudi Arabia; and as fairy floss in Australia. Similar confections include Korean and Persian . History Several sources track the origin of cotton candy to a form of spun sugar found in Europe in the 19th century. At that time, spun sugar was an expensive, labor-intensive endeavor and was not generally available to the average perso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemistry Classroom Experiments
Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (cosmochemistry), how medications work (pharmacology), and how to collect DNA evidence ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Reactions
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation. Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes can occur. The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants. Reactions often consist of a sequence of individual sub-steps, the so-called elementary reactions, and the information on the precise course of acti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The University Of Nottingham
, mottoeng = A city is built on wisdom , established = 1798 – teacher training college1881 – University College Nottingham1948 – university status , type = Public , chancellor = Lola Young, Baroness Young of Hornsey , vice_chancellor = Shearer West , head_label = Visitor , head = Penny Mordaunt(as Lord President of the Council ''ex officio'') , students = domestic () 43,893 worldwide , undergrad = domestic () , postgrad = domestic () , city = Nottingham , country = England , coor = , colours = University: blue and white Sports: green and gold , endowment = £72.3 million (2021) , budget = £694.0 million (2020–21) , affiliations = ACUAssociation of MBAsEQUIS EUARussell Group Sutton 30Universita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Society Of Chemistry
The Royal Society of Chemistry (RSC) is a learned society (professional association) in the United Kingdom with the goal of "advancing the chemistry, chemical sciences". It was formed in 1980 from the amalgamation of the Chemical Society, the Royal Institute of Chemistry, the Faraday Society, and the Society for Analytical Chemistry with a new Royal Charter and the dual role of learned society and professional body. At its inception, the Society had a combined membership of 34,000 in the UK and a further 8,000 abroad. The headquarters of the Society are at Burlington House, Piccadilly, London. It also has offices in Thomas Graham House in Cambridge (named after Thomas Graham (chemist), Thomas Graham, the first president of the Chemical Society) where ''RSC Publishing'' is based. The Society has offices in the United States, on the campuses of The University of Pennsylvania and Drexel University, at the University City Science Center in Philadelphia, Pennsylvania, in both Beijing a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocarbon
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colourless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid. They occur in a diverse range of molecular structures and phases: they can be gases (such as methane and propane), liquids (such as hexane and benzene), low melting solids (such as paraffin wax and naphthalene) or polymers (such as polyethylene and polystyrene). In the fossil fuel industries, ''hydrocarbon'' refers to the naturally occurring petroleum, natural gas and coal, and to their hydrocarbon derivatives and purified forms. Combustion of hydrocarbons is the main source of the world's energy. Petroleum is the dominant raw-material source for organic commodity chemicals such as solvents and polymers. Most anthropogenic (human-generated) emissions of greenhouse gases are carbon di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbohydrate
In organic chemistry, a carbohydrate () is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula (where ''m'' may or may not be different from ''n''), which does not mean the H has covalent bonds with O (for example with , H has a covalent bond with C but not with O). However, not all carbohydrates conform to this precise stoichiometric definition (e.g., uronic acids, deoxy-sugars such as fucose), nor are all chemicals that do conform to this definition automatically classified as carbohydrates (e.g. formaldehyde and acetic acid). The term is most common in biochemistry, where it is a synonym of saccharide (), a group that includes sugars, starch, and cellulose. The saccharides are divided into four chemical groups: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Monosaccharides and disaccharides, the smallest (lower molecular wei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broken Heart
Broken heart (also known as a heartbreak or heartache) is a metaphor for the intense emotional stress or pain one feels at experiencing great and deep longing. The concept is cross-cultural, often cited with reference to unreciprocated or lost love. Failed romantic love can be extremely painful; people with a broken heart may succumb to depression, anxiety and, in more extreme cases, post-traumatic stress disorder. Physiology The intense pain of a broken heart is believed to be part of the survival instinct. The " social-attachment system" uses the " pain system" to encourage humans to maintain their close social relationships by causing pain when those relationships are lost. Psychologists Geoff MacDonald of the University of Queensland and Mark Leary of Wake Forest University proposed in 2005 the evolution of common mechanisms for both physical and emotional pain responses and argue that such expressions are "more than just a metaphor". The concept is believed to be univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Headset (audio)
Headsets connect over a telephone or to a computer, allowing the user to speak and listen while keeping both hands free. They are commonly used in customer service and technical support centers, where employees can converse with customers while typing information into a computer. Also common among computer gamers are headsets, which will let them talk with each other and hear others, as well as use their keyboards and mice to play the game. Types Telephone headsets generally use loudspeakers with a narrower frequency range than those also used for entertainment. Stereo computer headsets, on the other hand, use 32-ohm speakers with a broader frequency range. Mono and stereo Headsets are available in single-earpiece and double-earpiece designs. Double-earpiece headsets may support stereo sound or use the same monaural audio channel for both ears. Single-earpiece headsets free up one ear, allowing better awareness of surroundings. Telephone headsets are monaural, even for doubl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sugar
Sugar is the generic name for sweet-tasting, soluble carbohydrates, many of which are used in food. Simple sugars, also called monosaccharides, include glucose, fructose, and galactose. Compound sugars, also called disaccharides or double sugars, are molecules made of two bonded monosaccharides; common examples are sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (two molecules of glucose). White sugar is a refined form of sucrose. In the body, compound sugars are hydrolysed into simple sugars. Longer chains of monosaccharides (>2) are not regarded as sugars, and are called oligosaccharides or polysaccharides. Starch is a glucose polymer found in plants, the most abundant source of energy in human food. Some other chemical substances, such as glycerol and sugar alcohols, may have a sweet taste, but are not classified as sugar. Sugars are found in the tissues of most plants. Honey and fruits are abundant natural sources of simple sugars. Suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jelly Babies
Jelly Babies are a type of soft sugar jelly sweets in the shape of plump babies, sold in a variety of colours. They were first manufactured in Lancashire, England, in the nineteenth century. Their popularity waned before being revived by Bassett's of Sheffield in Yorkshire, who began mass-producing Jelly Babies (initially sold as "Peace Babies") in 1918. History "Jelly Babies" are known at least since advertisements by Riches Confectionery Company of 22 Duke Street, London Bridge in 1885, along with a variety of other baby sweets, including "Tiny Totties" and " Sloper’s Babies". But the pricing of these, at one farthing each, suggests that they were very much larger than the modern Jelly Baby. The sweets were invented in 1864 by an Austrian immigrant working at ''Fryers of Lancashire'', and were originally marketed as "Unclaimed Babies." By 1918 they were produced by Bassett's in Sheffield as "Peace Babies," to mark the end of World War I. Bassett's themselves have supported ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
