Fritz Haber: Great Minds

Fritz Haber: Great Minds

Hank introduces us to the brilliant and heartless Fritz Haber, a great mind who is considered “the father chemical warfare,” but who also made discoveries and innovations that helped lead to the Green Revolution which is credited with preventing the starvation of over a billion people. Like SciShow on Facebook: https://www.facebook.com/scishow Follow SciShow on Twitter: https://www.twitter.com/scishow References for this episode can be found in the Google document here: https://dft.ba/-3ibK fritz haber, great minds, scishow, science, physical chemistry, chemistry, polish, jewish, lutheran, academic, professor, nitrogen fixing, nitrogen fixation, invention, soil, fertilizer, ammonia, organic, agriculture, famine, bat guano, bomb, explosive, commercial, industrial, haber-bosch process, germany, synthetic, nitric acid, blockade, nitrate, WWI, mustard gas, gas mask, trenches, chemical weapon, chemical warfare, Nobel prize, war crime, reparations, gold, seawater, hitler, insecticide, environment, water quality, dead zone

Tekla Middle East BIM Awards 2011 - 3rd Amonia & Urea Plant Granulation Structure

Tekla Middle East BIM Awards 2011 – 3rd Amonia & Urea Plant Granulation Structure

This structure is one of main structures in the powder production plants in petrochemical facilities. It is very complicated and dense structure. Because of the solid handling systems used in such structures, coordination between different disciplines are very essential and there are potentially large no. of clashes exist between structure elements and the solid handling system and piping in the building. Fortunately this coordination done effectively by using BIM in model transferring between structure department and other disciplines. One of the other benefits of using this model transferring, is to see the actual size of connections. In typical projects usually, connection elements (e.g. end plates, gusset plates,..) have been ignored, which actually is one of the main source of problems, by clashing with other items. In this model at the beginning the connections have been applied by Auto Connection, so nothing missed in the coordination with other disciplines.

4. IRRI Agronomy Challenge 2: Topdressing Urea in Chilly Weather (18 January 2013)

4. IRRI Agronomy Challenge 2: Topdressing Urea in Chilly Weather (18 January 2013)

Also see blog at https://irri.org/index.php?option=com_k2&view=item&id=12428:fertilizer-basics&lang=en and still photos on flickr at https://www.flickr.com/photos/ricephotos/sets/72157632409026656/with/8336124832/ Revisit Agronomy Challenge 1: https://www.youtube.com/playlist?list=PL59BE77F7B94D2BA3 and see the growing playlist for AG2 at https://www.youtube.com/playlist?list=PLNowyW0S1hI-KtFPult89oGQ5FIecQpaz Achim Dobermann, deputy director general for research at the International Rice Research Institute (IRRI; https://irri.org), and Leigh Vial, head of IRRI’s experiment station, begin IRRI Agronomy Challenge II. It is the continuation of a special project in which they demonstrate how to grow a productive rice crop in a 25 x 100-meter field on IRRI’s research farm. Here, Leigh applies urea topdressing at 29 days after transplanting and inspects the crop’s progress during abnormally cool weather for the Philippiines. Leigh’s commentary: 18 January: Fertilizing far-apart plants in chilly weather Now 29 days after transplanting, the plants are safe from harm by snails and relatively weed-free. There is the odd ugly patch. The weather has not been good in the last 10 days � rainy, cloudy, and relatively cool � and the plants show it. They have commenced tillering, but are not yet thriving. There is really no cure for unfavorable weather, but a timely topdressing will allow the plants to take full advantage of any future improvement. We applied 100 kg/ha of urea, which equates to 46 kg N/ha, onto dryish soil and irrigated within hours after this. I would give myself a 7 out of 10 for the uniformity of my topdressing. The dry soil does make it easier to see the density of granules on the ground and to adjust the application rate a little as you go. At this time, I do regret the mechanical transplanter’s 30-cm spacing between rows. Around 20, or at most 25 cm, would have been better. Currently, the 30-cm spacing looks to be a wide expanse, ready to be occupied by things other than rice, especially where we have the odd vacant site (or ‘hill’ to the purists), vacant from an imperfect transplanting process. Mother Nature hates an empty space so we will definitely need a second herbicide application. Please help us pray for sunny weather, or can you only pray for rain?

Ammonia and Water Reactions

Ammonia and Water Reactions

Watch the reaction of ammonia and water. Water can absorb 1,300 times it volume in ammonia gas. Liquid ammonia can expand 768 times itself at atmospheric conditions. Never put Liquid Water on Liquid Ammonia

AMMONIA PRODUCTION.avi

AMMONIA PRODUCTION

The Ammonia Production and its connections to Chemistry grade 12. This is a video taped presentation for summative purposes only, all the credit goes to the sources that have been used.

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