Atomic Bomb Design essays

Atomic Bomb Design essays By 1939 nuclear scientists had begun to delve seriously into the fission of uranium atoms causing a chain reaction, particularly in the U235 isotope. As a result, vast progress was made in the fields of neutron bombardment, the comparative efforts of slow neutrons versus fast neutrons in sustaining chain reactions, and the possible methods of separating U235 from U238 in natural uranium. Moreover, the possibility of an immense atomic explosion was becoming common knowledge, and calculations for a "critical mass" were just around the corner. As early as the spring of 1942, scientists and leaders across the United States were being exposed to plutonium, courtesy of Glen Seaborgs neutron bombardment of U238. With two unique isotopes of fissionable material at the disposal of the countrys greatest minds, it was fitting that two unique atomic weapon designs emerged. The gun bomb focused around driving together two sub-critical masses, and the implosion bomb relied on a uniform shockwave t o compress a plutonium center. Although both designs created the desired bang, they contained very unique features and lent themselves to plutonium and uranium in different ways. The primary research and design center for the bombs was the Los Alamos Scientific Laboratory in New Mexico. The designing of the bombs stemmed from a nuclear chain-reaction that is normally started by an initiator. The initiator injects a burst of neutrons into the fissile core at an appropriate moment (Elbert). The timing of the initiation of the chain reaction is important and must be carefully designed for the weapon to have a predictable yield. A neutron generator emits a burst of neutrons to initiate the chain reaction at the proper moment: near the point of maximum compression in an implosion design or at the complete assembly point in the gun design. A tamper is placed around the given nuclear material and acts a...

6 Disappeared LinkedIn® Partner Applications and What to Do About Them †Part III Box.net

6 Disappeared LinkedIn ® Partner Applications and What to Do About Them – Part III Box.net For a long time, I have been recommending to job seekers and other professionals that they use Box.net to post a copy of their resume (with street address and any other confidential information removed) to their LinkedIn profile. I have also offered Box.net as an option for attaching scanned recommendation letters when your recommender is not a LinkedIn member or just doesn’t come through with a LinkedIn recommendation. Box.net was a useful way to attach any documents you might want your LinkedIn visitors to view. Although the partner application for Box.net no longer exists, the website Box.net does- and my advice has not changed. If you want to post a document to your LinkedIn profile, the current way to do so is through entering a link to the document. In your Summary and Experience sections, you can add links to videos, images, documents or presentations by clicking on the blue box with a + sign in the corner. Once you click on that box you will be brought to a box where you can paste a link: If you don’t have a website where you can conveniently create pages with the documents you want to link to, just create a Box.net account! Box.net will give you a link you can use. Upload your document to Box.net, click on Share; you will receive a link to share the document. Here are the instructions sent out by Box.net regarding the change: Recently, LinkedIn announced its new profile design that replaces the current inApps platform with a new method for viewing content like documents, presentations and videos. You likely received a message from LinkedIn as well, but we wanted to be sure that as a user of the former Box inApp you know the best way to display and share a Box file on your new profile. After opting in to the new profile type, you’ll be able to easily add a specific Box file. To get started, copy and paste the file’s direct link in the LinkedIn professional gallery on the page. Find the direct link by previewing the file as you normally would in Box, selecting File Options Share Get Link to File and then clicking on Direct Link to generate the URL. Paste it directly in the LinkedIn professional gallery. Repeat the same steps for other files you’d like to add to your profile. Note that the LinkedIn professional gallery supports a limited set of file types, so check the Box support site if you experience any issues adding a file to your profile. We hope you enjoy the new way to share your important files from Box on LinkedIn. Here’s what my profile looks like with the resume linked from Box.net: What documents do you want to share with your LinkedIn audience? You can build your image through adding links using Box.net. Have fun! For more LinkedIn tips and tricks, go to the #1 best-selling e-book How to Write a KILLER LinkedIn Profile! Next week: What to do about TripIt and SlideShare? Category:Archived ArticlesBy Brenda BernsteinFebruary 11, 2013

Report to the Directors of USPS diagnosing the state of affairs and Essay

Report to the Directors of USPS diagnosing the state of affairs and offering some prognosis on what might be a more sustainable business model - Essay Example While many factors could be blamed for the situation, this paper has zeroed in on one issue: the business model. In comparison to other players, like the FEDEX and UK’s The Royal Mail, the evolution of technology was not supposed to have such severe effects on the institution. Besides highlighting these issues, the paper has offered the best model to adopt, and lucidly elaborated what entails. The U.S. Postal service (USPS) is tasked with ensuring the mails sent through their platforms reach their destinations on time. Many American business people and the society expect that no letter sent through USPS will be delayed for whatever reasons. Rather, each is convinced that the institution has the capacity to deliver without the slightest hiccups. However, the situation has deteriorated as evidenced by the number mails that reached their recipients way after their expected period. In a bid to arrest the situation, the USPS management sought to have in place measures that would enable the corporation fulfil its mandate. One of these included laying off of the staff whose retirement period was near. Unfortunately, the situation was not remedied as the immensely experienced individuals were lost not to mention the subsequent workload. Upon realizing these measures were not effective, the management hired other people meaning the cost rose significantly. In light of these issues , this paper seeks to investigate the real cause of the problems at USPS. Further, a prognosis will be offered upon identifying the major issues bedevilling the USPS. A closer analysis of the woes facing USPS reveals that a single problem did not result in its current state. Rather, a myriad of issues including lack of innovation as evidenced by the number of letters that would be sorted by the clerks. Apparently, the process would be done manually, a process that inevitably cost the institution a considerable amount of resources