presence of ignitable liquids in the burn wood floor. To whom did the fingerprints on the match box belong? What characteristics of the fingerprints helped you to determine they were a match? How long does the average IAFIS search take? Why is there a charcoal strip inside the containers that you used to collect the floor pieces? Why are these pieces saved after the solution has been prepared for the GC? What elements were present in the gas chromatograph from your puddle sample? How did
Premium Gas chromatography Alcohol Ethanol
powder‚ but do you know who invented it and when it was created. It was first created by the Chinese during the tang dynasty. This particular dynasty was active in the 18th century. Gunpowder contains 3 important ingredients: sulfur‚ saltpeter‚ and charcoal. Ironically today we use gunpowder to kill but before used in weapons the Chinese thought it could cure skin diseases. Soon after gunpowder’s total potential was discover. The Chinese then invented the cannon. Three major empires saw the power of
Premium Ottoman Empire
Feed to animals during pregnancy or breeding timeat 200 times dilution. Spray when first flowers comes out. ex: tomato plant ‚ cucumber‚ eggplant etc. Boil or broil 2 kilos ofanimal bones to separatemeat and fat untilremaining meat to thebone is charcoal blackscrape charred meat andlet it cool. Do not burnthe bone. Ratio 1:10 1 Place bone in a plasticcontainer and pour 5gallons of purecoconut or sugarcanevinegar. Cover for 30days. Filter and used.Keep air tightcontainer. 2 Calcium (eggshell and
Premium Fruit Bone Calcium
Located in South America‚ the Amazon rainforest covers a span of about 3.5 million square miles in several different countries‚ making it the world’s largest rainforest. Rainforests are characterized by the heavy rainfall they receive which is a minimum of six and a half feet a year. Also‚ they can either be tropical or temperate‚ and they are found on nearly every continent‚ not including Antarctica. They are also composed of several vertical layers. The canopy‚ the uppermost layer‚ is the “tops
Premium Rainforest Amazon Rainforest Tropical rainforest
reverence for Buddha and for bodhisattvas‚ enlightened persons who have postponed nirvana to help others attain enlightenment. Kamakura Shogunate: The first of Japan’s decentralized military governments. Gunpowder: A mixture of saltpeper‚ sulfer‚ and charcoal‚ in various porportions. The formula‚ brought to China in the various proportions. The formula‚ brought to China in the 400s or 500s‚ was first used to make fumigators to keep away inscects‚ pests‚ and evil spirits. In later centuries it was used
Premium China Han Dynasty Buddhism
Though the discovered by accident‚ gunpowder changed the trajectory of combat operations. Discovered in the ninth century Chinese alchemist developed something with the potential of conquering nations. Gunpowder is used in many weapons throughout history and to this day‚ but one of the first was flying fire. With the simple invention of the gunpowder cannon‚ a totally new type of defense was unearthed. When the devastating power of the cannon was shrunken down into a handheld weapon‚ the course of
Premium Nuclear weapon World War II Atomic bombings of Hiroshima and Nagasaki
an art professor from TCU‚ an art teacher from a local High School‚ and an art critic from the Minneapolis Institution of Art. Each student must enter at least three but not more than five pieces—at least one in oil‚ one in watercolor‚ and one in charcoal. Other categories include sculpture and computer graphics. Music Club As many as ten music students will be chosen based on their performance at competitive auditions to be held at Hiawatha High School on Saturday‚ May 13. The judges will
Premium Music High school Art
Global Warming: Glaciers are melting‚ sea levels are rising‚ cloud forests are drying‚ and wildlife is scrambling to keep pace. It’s becoming clear that humans have caused most of the past century’s warming by releasing heat-trapping gases as we power our modern lives. Called greenhouse gases‚ their levels are higher now than in the last 650‚000 years. We call the result global warming. The "greenhouse effect" is the warming that happens when certain gases in Earth’s atmosphere trap heat. These
Free Carbon dioxide Global warming Coal
Karen Walker Karen Walker is an African American artist born in the November 29 1969 in Stockton California USA. Kara Walkers‚ father was an educated artist leaving her to have appreciation for the arts Walker says she had developed an interest in art from the age of 3 years of age primarily because her father was an artist. Walker advised in her teenage years she realized she really liked pictures that told her stories of things – genres paintings and historical paintings the sort of derivatives
Premium American Civil War African American Southern United States
CHAPTER 1 The Invention of Writing Cave painting from Lascaux‚ c. 15‚000-10‚000 bce. Random placement and shifting scale signify prehistoric people’s lack of structure and sequence in recording their experience. Media: Ground pigments – charcoal for black‚ yellows‚ reds and browns from iron oxides Binder – animal fat Substrate – (aka: ground) cave walls and ceilings Application – fingers‚ reed brushes or breath Chauvet Caves Two periods of production: 27‚000-26‚000 BCE and
Premium Ancient Egypt Egyptian hieroglyphs