(PDF) Murphy's Law and Other Reasons Why Things Go Wrong | Elise Pollard - donkeytime.orgIn this unit, students explore the commonly held belief that if anything bad can possibly happen it will and at the most inopportune time. They are encouraged to look at events involving chance and predict the likelihood of certain outcomes by both trialling the event and analysing it theoretically. The basic tenet here is that what can go wrong will go wrong. The students are encouraged to work out these situations theoretically too. Hence students get a chance to test and explore widely held views under strict, controlled conditions.
Murphy's law—if anything can go wrong, it will
Murphy's laws site All the laws of Murphy in one place Enter your search terms. Johnson Extension: it will be all your fault, and everyone will know it. Extension sent by Dean A. Izett If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong Extreme version: If there is a possibility of several things going wrong, the one that will cause the most damage will be the FIRST to go wrong Extreme version sent by Neal Miller If anything just cannot go wrong, it will anyway If you perceive that there are four possible ways in which something can go wrong, and circumvent these, then a fifth way, unprepared for, will promptly develop Corollary: It will be impossible to fix the fifth fault, without breaking the fix on one or more of the others Corollary sent by Sean Cheshire Left to themselves, things tend to go from bad to worse If everything seems to be going well, you have obviously overlooked something Nature always sides with the hidden flaw Corollary: The hidden flaw never stays hidden for long. Corollary sent by Dave M.
The quality of bacteriophage electron microscopy appears to be on a downward course since the s. This coincides with the introduction of digital electron microscopes and a general lowering of standards, possibly due to the disappearance of several world-class electron microscopists The most important problem seems to be poor contrast. Positive staining is frequently not recognized as an undesirable artifact. Phage parts, bacterial debris, and aberrant or damaged phage particles may be misdiagnosed as bacterial viruses. Digital electron microscopes often seem to be operated without magnification control because this is difficult and inconvenient.