Thursday, November 28, 2019

#WCEU 2018 Comics w/ ThemeIsle ... Volunteer Roles, After Party, Speaker Sessions

Hey guys! As you probably already know, ThemeIsle will go to WordCamp Europe 2018 as a media partner (we mentioned it on several occasions in our posts). The road so far has been fun; we had to modify our agenda a bit and get involved in helping the organizers with the promotion of the event, both on social media and here, on the blog.After doing interesting interviews with members of the organizing crew, joyous  roundups with committed WordCamp-ers, and even an infographic comparing all the WCEU editions (from first  to current), this time around we have jokes for you! Illustrated jokes, that is, made by Christian Mirra.Weve been experimenting with comics for nine months now on our other blog, CodeinWP, and enjoyed it big time. So why not try it again here?We love volunteering at WordCamps so much, which is actually the reason why we created a three-panel comic strip only about volunteer roles. A hint to the official after party and a reference to the speaker  sessions will be the two stories that will complement the whole picture. Volunteer RolesIf youve joined the volunteer squad, make sure to check your job description and schedule before starting your shifts.Go to topWatching two presentations at onceHave you ever managed to attend all the sessions in an event? Probably not. According to the schedule, many great presentations will be  happening at the same time again this year. Also, several workshops were added to the agenda, too. So even more events will overlap.  Go to topParty like movie charactersWondering why Han Solo and his friends mistook the WCEU after party for their own? Because a retro-futuristic gathering  does sound like something that would be organized by your favorite Star Wars characters.And because aint no party like a #WCEU after party, of course.  Go to top That is all, fellow WordCamp-ers! If you like our special edition of these WCEU comics, show us some love via the comments section and social media, so other people c an smile as well.By the way, have you managed to set your priorities yet? Because lots of awesome activities will happen during these three days. Anyway, in case our agendas collide, we will definitely meet there. 🙂So, fill up with enthusiasm and coffee because WordCamp Europe is about to start in only a few days. Our team will be there volunteering, doing live interviews in the Media Room, attending workshops, helping WordPress grow during Contributors Day, and keeping up with all the parties.But thats just us. What are your plans for Belgrade? #WCEU 2018 #comics w/ ThemeIsle ... volunteer roles, after party, speaker sessions

Sunday, November 24, 2019

How to Separate Salt and Sand †3 Methods

How to Separate Salt and Sand - 3 Methods One practical application of chemistry is that it can be used to help separate one substance from another. The reasons materials may be separated from each other is because there is some difference between them, such as size (separating rocks from sand), state of matter (separating water from ice), solubility, electrical charge, or melting point. Separating Sand and Salt Students are often asked to separate salt and sand to learn about mixtures and to explore the differences between forms of matter that can be used to separate mixture components.Three methods used to separate salt and sand are physical separation (picking out pieces or using density to shake sand to the top), dissolving the salt in water, or melting the salt.Probably the easiest method to separate the two substances is to dissolve salt in water, pour the liquid away from the sand, and then evaporate the water to recover the salt. Physical Separation of Salt and Sand Since both salt and sand are solids, you could get a magnifying glass and tweezers and eventually pick out particles of salt and sand. Another physical separation method is based on the different densities of salt and sand. The density of salt is  2.16  g/cm ³ while the density of sand is 2.65  g/cm ³. In other words, sand is slightly heavier than salt. If you shake a pan of salt and sand, the sand will eventually rise to the top. A similar method is used to pan for gold, since gold has a higher density than most other substances and sinks in a mixture. Separating Salt and Sand Using Solubility One method of separating salt and sand is based on solubility. If a substance is soluble it means it dissolves in a solvent.  Salt  (sodium chloride or NaCl) is an ionic compound that is soluble in water. Sand (mostly silicon dioxide) is not. Pour the salt and sand mixture into a pan.Add water. You dont need to add a lot of water. Solubility is a property that is affected by temperature, so more salt dissolves in hot water than cold water. Its okay if the salt doesnt dissolve at this point.Heat the water until the salt dissolves. If you get to where the water is boiling and there is still solid salt, you can add a bit more water.Remove the pan from heat and allow it to cool until its safe to handle.Pour the salt water into a separate container.Now collect the sand.Pour the salt water back into the empty pan.Heat the salt water until the water boils. Continue boiling it until the water is gone and youre left with the salt. Another way you could have separate the saltwater and sand would be to stir up the sand/saltwater and pour it through a coffee filter to capture the sand. Separating Mixture Components Using Melting Point Another method to separate components of a mixture is based on melting point. The melting point of salt is 1474 °F (801 °C), while that of sand is  3110 °F (1710 °C). Salt becomes molten at a lower temperature than sand. To separate the components, a mixture of salt and sand is heated above  801 °C, yet below  1710 °C. The molten salt may be poured off, leaving the sand.  Usually this in not the most practical method of separation because both temperatures are very high. While the collected salt would be pure, some liquid salt would contaminate the sand, like trying to separate sand from water by pouring off water. Notes and Questions Note, you could have simply let the water evaporate from the pan until you were left with the salt. If you had chosen to evaporate the water, one way you could have sped up the process would have been to pour the saltwater into a large, shallow container. The increased surface area would have exchanged the rate at which water vapor could have entered air. The salt did not boil away with the water. This is because the boiling point of salt is much higher than that of water. The difference between boiling points can be used to purify water via distillation. In distillation, the water is boiled, but is then cooled so it will condense from vapor back into water and can be collected. Boiling water separates it from salt and other compounds, like sugar, but it has to be carefully controlled to separate it from chemicals that have lower or similar boiling points. While this technique can be used to separate salt and water or sugar and water, it would not separate the salt and sugar from a mixture of salt, sugar, and water. Can you think of a way to separate sugar and salt? Ready for something more challenging? Try purifying salt from rock salt.

Thursday, November 21, 2019

Demoracy and War Research Paper Example | Topics and Well Written Essays - 1500 words

Demoracy and War - Research Paper Example In that direction, as hypothesized by various thinkers, democracies may maximally avoid indulging in war with other fellow democratic countries. So, this paper focusing on the theoretical bases for the hypothesis regarding the absence of war between democratic states, will compare the theories behind this hypothesis, including how they are complementary as well as competitive. The theories and theoretical concepts put forward by various thinkers on the above mentioned hypothesis of democratic countries avoiding wars within themselves, are constituted under Democratic peace theory. Also, known as liberal democratic theory or simply called as "democratic peace", this theory is being analyzed by various study groups in both in the current political contexts as well as historical contexts. The theory and the related hypothesis had origins in the 18th century itself, through the works of Immanuel Kant, but came into more prominent circulation and were also scientifically evaluated after 1 960s only. Kant foreshadowed the basis of this theory in 1795 in his essay named, Perpetual Peace, in which he hypothesized that if the geographical territories or countries are constitutional republics, voted by common people, then there are good chances of actualizing perpetual peace. Immanuel Kant (1795) argued that â€Å"majority of the people would never vote to go to war unless it was in self defense; that if all nations were republics, it would end war, because there would be no aggressors.† (cited in Okoth, 2008). This hypothesis came into more prominence and research study in the second half of the 20th century, after the Second World War, as more democracies came into existence throughout the world. If viewed from another perspective, thinkers supporting the democracy peace theory state that due to the rise of many democracies only major wars or even Third World War has not taken place. As Barkawi and Laffey (1999) states â€Å"a defining feature of world politics in the late 20th century is the decline in the frequency of warfare between industrialized states†, with the existence of a ‘zone of peace’ between the democratic countries being attributed as the main reason. This hypothesis is further supported by a number of recent wars or conflicts, as it primarily took place between non-democratic countries or between one democratic country and a non-democratic country, but not between two democracies. For example, both the Wars in the Gulf involving Iraq in 1992 and 2003 were between an authoritarian regime and a coalition of democracies, and it is the same in the case of Afghanistan. Even the earlier wars in Korea and Vietnam involved communist regimes. However, when one views the perspective of thinkers having contrary opinions to this Democratic theory, there are exceptions to this hypothesis. For example, the Kargil War that took place between India and Pakistan in 1999 involved democracies, as well as the Israel-Egypt c onflict. Although there were exceptions, democracies avoid going to war with fellow democracies due to some valid reasons. Democracies are mainly viewed as the best outcome of wars and other independence or liberation or resistance struggles. That is, in the aftermath of major wars and struggles, country