{"id":14362,"date":"2020-11-16T10:00:00","date_gmt":"2020-11-16T09:00:00","guid":{"rendered":"https:\/\/www.barcelonesa.com\/el-dia-de-la-quimica-0\/"},"modified":"2021-07-22T17:51:12","modified_gmt":"2021-07-22T15:51:12","slug":"chemistry-day","status":"publish","type":"post","link":"https:\/\/www.barcelonesa.com\/en\/blog\/chemistry-day\/","title":{"rendered":"Chemistry Day"},"content":{"rendered":"\n<p>November 15 has a special place in our calendar: as every year since 2002, we celebrate Chemistry Day.&nbsp;<\/p>\n\n\n\n<p>At Grup Barcelonesa, we want to take advantage of this day to give our sector back its leading role and make the great influence of chemistry on social progress visible.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The 10 most revolutionary discoveries in chemistry<\/strong><\/h2>\n\n\n\n<p>The achievements of chemistry tend to be overshadowed by those of other more &#8220;photogenic&#8221; sciences, which generate more headlines and fill more pages in the general press.&nbsp;<\/p>\n\n\n\n<p>That is why we believe that today is a good opportunity to&nbsp;<strong>showcase some of chemistry&#8217;s most famous discoveries.<\/strong><\/p>\n\n\n\n<p><strong>1.- The first vaccine in history<\/strong><\/p>\n\n\n\n<p>Smallpox is one of the most lethal diseases in existence.&nbsp;<\/p>\n\n\n\n<p>It is estimated that over 300 million people have died from smallpox.&nbsp;&nbsp;<\/p>\n\n\n\n<p>Faced with this serious public health problem, chemist Edward Jenner discovered in 1796 that<strong>&nbsp;by injecting a sample of the less virulent bovine smallpox into a child, the child survived and became immune to human smallpox.&nbsp;<\/strong><\/p>\n\n\n\n<p>This was the beginning of the smallpox vaccine that has saved millions of lives since then.<\/p>\n\n\n\n<p><strong>2.- Penicillin, the antibiotic that saved millions of lives<\/strong><\/p>\n\n\n\n<p>We all know the story of Fleming, who accidentally discovered a strange mould growing on a neglected Petri dish.&nbsp;<\/p>\n\n\n\n<p>Around the fungus, the bacteria on the plate had died, which led him to believe that<strong>&nbsp;the mould had bactericidal properties<\/strong>. However, he failed to extract penicillin in useful quantities.&nbsp;<\/p>\n\n\n\n<p>It wasn&#8217;t until 10 years later, when Australian Howard Florey and his team of chemists discovered a way to extract penicillin in large quantities for use.<\/p>\n\n\n\n<p><strong>3.- The Haber-Bosch process and population growth<\/strong><\/p>\n\n\n\n<p>Although nitrogen is the most abundant gas in our atmosphere, we living beings cannot assimilate this atmospheric nitrogen.&nbsp;<\/p>\n\n\n\n<p>Moreover, this element is essential for crop growth. In fact, its scarcity has always been a limiting factor in agricultural production.&nbsp;<\/p>\n\n\n\n<p>The German chemists Fritz Haber and Carl Bosch changed this, as they managed&nbsp;<strong>to combine atmospheric nitrogen with hydrogen to form ammonia.<\/strong>&nbsp;And this compound can be incorporated by plants to use as fertilizer.<\/p>\n\n\n\n<p>Without a doubt, this was a great advance in agro-chemistry, which was key to the population explosion that took place at the beginning of the 20th century.<\/p>\n\n\n\n<p><strong>4.- The accidental discovery of plastic<\/strong><\/p>\n\n\n\n<p>As early as 1898, the German chemist Hans von Pechmann accidentally synthesised the polyethylene molecule.&nbsp;<\/p>\n\n\n\n<p>But as with penicillin, he failed to extract anything useful from this compound, despite his efforts.&nbsp;<\/p>\n\n\n\n<p>It was not until 1933 that ICI laboratories in England discovered the method for creating one of the most common plastics in use today.<\/p>\n\n\n\n<p><strong>5.- The contraceptive pill and the Mexican yam<\/strong><\/p>\n\n\n\n<p>Due to the high cost of producing progesterone, Russel Marker &#8211; a professor of organic chemistry &#8211; travelled to Mexico in search of a way to obtain it from plants.&nbsp;<\/p>\n\n\n\n<p>Thus, he discovered in the root of the yam a component that, in a simple way, he could convert into progesterone.&nbsp;<\/p>\n\n\n\n<p>This led to the manufacture of the first oral contraceptive, which brought about a major social change.<\/p>\n\n\n\n<p><strong>6.- The current screens<\/strong><\/p>\n\n\n\n<p>The idea of flat screens had been in the making since the 1960s, when a British defence minister insisted on incorporating them into military vehicles.&nbsp;<\/p>\n\n\n\n<p>At that time, LCDs (liquid crystal displays) were already a reality, but they only worked at high temperatures.&nbsp;<\/p>\n\n\n\n<p>In 1970,&nbsp;<strong>George Gray succeeded in making LCDs work at room temperature by inventing a molecule known as 5CB.&nbsp;<\/strong><\/p>\n\n\n\n<p>Today, all the screens we use are made up of derivatives of that first molecule.&nbsp;<\/p>\n\n\n\n<p><strong>7.- Radioactivity<\/strong><\/p>\n\n\n\n<p>Antoine Becquerel discovered radioactivity when he saw that uranium fluoresced.&nbsp;<\/p>\n\n\n\n<p>But it was Pierre and Marie Curie who began research in this field, with their&nbsp;<strong>discovery of polonium and radium in 1898.&nbsp;<\/strong><\/p>\n\n\n\n<p>This important discovery created the basis for innovations such as X-rays, nuclear energy and radiotherapy.<\/p>\n\n\n\n<p><strong>8.- Energy production<\/strong><\/p>\n\n\n\n<p>There are many chemical experiments and discoveries in the area of energies.&nbsp;<\/p>\n\n\n\n<p>We have gone from a time when the greatest efforts were focused on the use of fossil fuels, to a more current era related to electricity.&nbsp;<\/p>\n\n\n\n<p>Nowadays, however,&nbsp;<strong>chemical research is focused on the development of more sophisticated batteries.&nbsp;<\/strong><\/p>\n\n\n\n<p><strong>9.- Pasteurisation, another lifesaver<\/strong><\/p>\n\n\n\n<p>Discovered by the French scientist Louis Pasteur, pasteurisation is the method of sterilising milk at high temperatures.&nbsp;<\/p>\n\n\n\n<p>Then applied in the food industry,<strong>&nbsp;it prevented the growth of microbes that were causing illness &#8211; and death<\/strong>&nbsp;&#8211; through the ingestion of contaminated food and drink.<\/p>\n\n\n\n<p><strong>10.- The solar panels<\/strong><\/p>\n\n\n\n<p>We have already seen that chemistry has played a fundamental role in the advancement of energy technologies. And renewables were not going to be an exception.&nbsp;<\/p>\n\n\n\n<p>In fact, our discipline is responsible for the&nbsp;<strong>creation of new materials capable of using sunlight<\/strong>, as is the case with the silicon that solar panels are made of.<\/p>\n\n\n\n<p><strong>And this is where we come in with some of chemistry&#8217;s most important contributions.<\/strong><\/p>\n\n\n\n<p>Although not as well known as other sciences, its contribution to society is undeniable.&nbsp;<\/p>\n\n\n\n<p>It is no exaggeration to say that chemistry has created the world as we know it today.&nbsp;<\/p>\n\n\n\n<p>That is why, from Grup Barcelonesa, we congratulate the members of our family on this day of special recognition for the work of our sector.&nbsp;<\/p>\n\n\n\n<p>Happy Chemistry Day!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>November 15 has a special place in our calendar: as every year since 2002, we celebrate Chemistry Day.&nbsp; At Grup Barcelonesa, we want to take advantage of this day to give our sector back its leading role and make the great influence of chemistry on social progress visible.&nbsp; The 10 most revolutionary discoveries in chemistry [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":14363,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[846],"tags":[958],"class_list":["post-14362","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-dia-de-la-quimica-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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