Think back to big firework nights such as Bonfire Night and Ne Year’s Eve – has it often rained the following day? According to some‚ it does and for many the reason behind the rain isn’t merely a coincidence. They believe it is because of fireworks! But is it true that fireworks could change the weather and make it rain? Here’s a quick look at the theories and the science behind this long running myth. The Argument The argument that fireworks can make it rain comes from the composition of fireworks
Premium Carbon dioxide Global warming Climate change
atmosphere‚ and an even smaller amount of the Earth’s freshwater (0.003%) is contained within biological bodies and manufactured products.[2]Water on Earth moves continually through the water cycle of evaporation and transpiration (evapotranspiration)‚ condensation‚ precipitation‚ and runoff‚ usually reaching the sea. Evaporation and transpiration contribute to the precipitation over land. Water used in the production of a good or service is known as virtual water. Safe drinking water is essential to humans
Premium Water
Prelab 5B Macrocyclic Synthesis OBJECTIVE: The objective this week is to produce Tetraphenylporphyrin and its metal complex. This will be carried out by condensation of 4 equivalents of Benzaldehyde and pyyrole in the presence of propanoic acid. The product will undergo UV/Visible Spectrum tests to determine its lambda max. The lambda max will show us the relationship between a conjugated system and the visible spectrum. PROCEDURE: Step 1: preparation of meso-tetraphenylporphyrin (TPP)
Premium Chemical reaction Chemistry Acetic acid
EOSC 114 MIDTERM 3 Last Name‚ First Name: _____________________________ 2010 Fall - Term 1 Student Number: _____________________ Instructions: Closed book. No calculator. Indicate all your answers on the Scantron sheet. Only the Scantron sheet will be marked‚ but turn in both the Scantron (answer) sheet and this question packet. Put your name and student number on both the Scantron sheet and the question packet. There is only one best answer to each question. Don’t leave any questions
Free Tornado Thunderstorm Storm
remarkable invention of the steam engine is the actual steam itself. At the end of a cycle‚ the steam use to move pistons and drive the cycle must be released as exhaust. This translates into a high-temperature‚ high-pressure vapor (with a high heat of condensation) effusing at high speeds. If a human limb or digit gets in the way of this potent jet‚ it means sure destruction of the epidermis‚ papillary dermis‚ and even reticular dermis portions of the skin. In layman’s terms‚ you’re going to get burned bad
Premium Water Burn
floral lotions assaulted my nostrils‚ and I let out a sigh of relief as I was now positive that this was the bathroom dedicated to my gender. Standing at the sink‚ she was using a wad of paper towels to free her hands of the last few traces of condensation from the running water of the faucet. She looked up at me‚ obviously startled by the intrusion of another person in the space that she had previously occupied alone. The crease that had formed in between her trimmed chocolate eyebrows seemed to
Premium Debut albums Bathroom Family
Review of related literature: Octyl acetate Octyl acetate‚ or octyl ethanoate‚ is an ester that is formed from octanol (octyl alcohol) and acetic acid. It is mostly found in oranges and other citrus products. Octyl acetate can be synthesized by a condensation reaction: C8H17OH + CH3COOH → C10H20O2 + H2O Uses Because of its fruity odor‚ octyl acetate is used as the basis for artificial flavors and in perfumery. It is also as a solvent for nitrocellulose‚ waxes‚ oils and some resins. Source: http://en
Premium Acetic acid Ester
air pressing down on the ground below will vary depending on the ground’s height above sea level. Boiling When a liquid vaporises. Capillary action When water is drawn up between close fitting surfaces. Compression force A crushing force. Condensation When a gas turns into a liquid. Conduction Method by which solids transfer heat. Convection Method by which liquids and gases transfer heat. Corrosion The deterioration of metals that occurs on contact with liquids. Ductility Ductility
Premium Liquid Temperature Iron
center. These disturbances originate over water. The most probable push for the vigorous action in starting these rotary storms due to earth’s rotation‚ results from cold air meeting warm‚ moist‚ rising air. The tremendous energy derived from the condensation of the water vapor supplied by the moist‚ tropical trades is readily converted into kinetic energy. One simple way of determining the center of the typhoon is if the wind is blowing against your back‚ the center of the typhoon is directly to your
Premium Tropical cyclone
language through medical rehabilitation to virtual reality. In this paper‚ we provide a survey on gesture recognition with particular emphasis on hand gestures and facial expressions. Applications involving hidden Markov models‚ particle filtering and condensation‚ finite-state machines‚ optical flow‚ skin color‚ and connectionist models are discussed in detail. Existing challenges and future research possibilities are also highlighted. Index Terms—Face recognition‚ facial expressions‚ hand gestures‚ hidden
Premium Facial recognition system Gesture