However, it is an extremely persistent organic pollutant; it does not degrade easily. Furthermore it tends to biomagnify as it is passed along the food chain. Long-term exposure has proven toxic to a very wide range of animals including humans. For this reason it is now banned in most of the world.
It has been linked to health problems such as Parkinson's disease, breast cancer, and immune, reproductive, and nervous system damage. It can also adversely affect testicular descent in the fetus if a pregnant woman is exposed to Dieldrin.
Dieldrin is listed in the Stockholm Convention on Persistent Organic Pollutants.
It can be formed from the synthesis of hexachloro-1,3-cyclopentadiene with norbornadiene in a Diels-Alder reaction, followed by epoxidation of the norbornene ring.
Dieldrin is named after Otto Paul Hermann Diels, the co-inventor of the Diels-Alder reaction.
Endrin
Endrin is an insecticide that was commonplace among cotton growers and for the treament of cereals. It was also used to kill rodents. It is a neurotoxin. It is a stereoisomer of Dieldrin. In the soil, it can take up to twelve years to decay. It is one of the twelve substances listed in the Stockholm Convention on Persistent Organic Pollutants, and its production, trade and use is banned since 2004.
Mount Stromlo
Mount Stromlo is west of the centre of Canberra, Australia, near the district of Weston Creek. It is about above sea level and above the surrounding plains. The Mount Stromlo Observatory (run by the Australian National University) is on the top of the mountain. Canberra's main water supply treatment plant, supplied by the Cotter River catchment area is nearby. Road access to the mountain is by Cotter Road on the south side, and Uriarra Road on the east and north. The summit is reached by a road joining Cotter road just outside Duffy.
The mountain had been part of the Yarralumla Station, a farm now used as the residence the Governor-General of Australia. It was named Mount Stromlo by Frederick Campbell in the 1880s, but it is not known where he got the name.
Mount Stromlo was chosen by Pietro Baracchi in 1910 as the site for an observatory. The first telescope installed at Mount Stromlo was the Oddie telescope on 8 September 1911. The building housing this telescope was the first built by the Australian government in Canberra. In January 1913 the first telephone was connected to the Queanbeyan telephone exchange.
Mount Stromlo was burnt during bushfires in 2003. The fire burnt a pine plantation that covered the mountain, destroyed much of the observatory and water treatment plant.
Before the 2003 fires, Mount Stromlo had some of the best and oldest mountain bike trails in Australia. In May 2006 the trails were rebuilt and made bigger. Stromlo Forest Park now has more than 35 km of cross country single trail, a Four-Cross course, several observed trials areas and a downhill track. The 2009 Union Cycliste Internationale Mountain Bike and Trials World Championships were held at Mount Stromlo. About 30,000 visitors from up to 40 countries came to the event. More than 750 of the world's top riders took part in the four mountain bike sports of Cross Country, Downhill, Four Cross and Observed Trials.
Mount Stromlo also has a large building for events, with offices and change rooms. There is a children's play ground, barbecues, a road cycling circuit, a grass cross country running track and horse riding trails.
The rock on Mount Stromlo is ignimbrite from a volcanic eruption during the upper Silurian period. This is covering rhyodacite from a much earlier period, which can be seen on the surface on the lower slopes in the east and southeast sides. The northern lower slopes are covered with a calcareous shale also from the Silurian period. This is cut off on the northwest side by the Winslade Fault, which heads northeast to Cook and Kaleen. A spur fault heads off east from the Winslade Fault to under the Scrivener Dam. On the other side (northwest and north) of these faults are middle Silurian period rhyodacite volcanic deposits. The northern side has been uplifted compared with the southern side.
Stoney Creek and its tributaries drain the north side of the mountain, The east side drains into the Molonglo River. The south side supplies Blugar creek that runs into the Murrumbidgee River.
The top of the mountain near the observatory runs in a north-south direction with a spur running to the southwest where the water treatment plant is.
National Museum of Australia
The National Museum of Australia is a social history museum in Australia's capital city, Canberra, Australian Capital Territory. It includes displays on the people of Australia, including the Indigenous Australians, the history of settlement and the environment. It was opened in 2001.
Terminal Velocity (video game)
Terminal Velocity is a video game that was published by 3D Realms and was developed by Terminal Reality. The video game was released on May 1, 1995 and was released for the MS-DOS and Mac OS. The game is an arcade-style flight combat game, with simpler game controls and physics than most other flight simulators. The game is best known for it's fast and high-energy action sequences. The game takes place in the year 2704, when the ASFAR (Alliance of Space-Faring Alien Races), of which Earth is a member of, suddenly turns against Earth and their fleet ravages the planet and starts a war. The player has to fly a powerful starfighter called the TV-202, in a series of missions to defeat the enemy. A huge supercomputer known as X.I. (Xenocidic Initiative) is responsible for the war and the final mission is to destroy it.
Star Fox 64
is a remake released for the Nintendo 3DS console. It was released in July and September 2011. It includes use of the console's touch screen and better graphics.
Homeward Bound: The Incredible Journey
Homeward Bound: The Incredible Journey is a 1993 animal-adventure movie that was produced by Jeffrey Chernov and Franklin R. Levy and was directed by Duwayne Dunham. Homeward Bound: The Incredible Journey was released on February 3, 1993 in North America. It is a remake of the 1963 movie, "The Incredible Journey" which was based on the novel of the same name. The movie was xxxxxxxxxx the 1996 movie, "". The movie received positive reviews with a 87% rating on Rotten Tomatoes.
Teltow
Teltow is a place in Germany. The population is around 4,000 and it is in the province of Potsdam-Mittelmark.
Page layout
Page layout is a part of typography and graphic design. It deals with the arrangement and style of elements (content) on a page.
Page design has long been a consideration in printed material. It began with early illuminated manuscripts in the hand-copied books of the Middle Ages. Today, modern magazine and catalogue layouts, (and other print media) consist of type (text), images (pictures), and occasionally place-holder graphics for elements that are not printed with ink such as die/laser cutting, foil stamping or blind embossing.
Since the advent of computing, page layout skills are used on electronic media as well as print. The electronic page–the graphical user interface (GUI)–is often where design now takes place.
A page layout may be designed in a rough paper and pencil sketch before producing, or produced during the design process to the final form. Both design and production may be achieved using hand tools or page layout software. Producing a web page may require knowledge of markup languages along with WYSIWYG software. Special considerations must be made for how the layout of an HTML page will change (reflow) when resized by the end-user. Cascading style sheets are often required to keep the page layout consistent between web browsers.
Grids and templates are page layout design patterns used in advertising campaigns and multiple-page publications, including websites.