Hindsight bias is when people exaggerate their confidence in an event that occurred based on predictions that were made prior to the event’s occurrence. Hindsight bias is just one type of bias that the brain uses to store and recall information. This is because people tend to focus on an event that occurred rather than the possible alternatives that did not. Hindsight bias is most commonly seen in prophecies, meteorology, and current events. How Does Hindsight Bias Work? Hindsight bias is a very common occurrence and only those who understand Read More
Vehicle platooning is one of the innovations in the automotive industry that aim to improve the safety, efficiency, mileage, and time of travel of vehicles while relieving traffic congestion, decreasing pollution and reducing stress for passengers. One of the recent demonstrations of this technology was during the PATH program done in California by 8 Buicks operating as a platoon. Advantages of Vehicle Platooning Maximizes Highway Throughput Vehicle platooning makes it possible for vehicles to travel together closely yet safely. This leads to a reduction in the amount of space used Read More
Luminous flux (luminous power) is the measurement of the (perceived) power of light. It is adjusted to take the human eye’s sensitivity to the different wavelengths of light into account. Luminous flux differs from radiant flux in this manner, since radiant flux is a measurement of the total power of light emitted independent of wavelength. What is the SI Unit of Luminous Flux? The unit of measurement that is associated with luminous flux is the lumen (lm). A single lumen is the amount of light that produces a single candela Read More
The Tyndall Effect refers to the reflection of light as it comes in contact with small particles in a translucent medium. It involves the scattering of light in different colors depending on how short or long a particular wavelength is. For example, the Tyndall Effect can describe the haze seen as light travels through a window covered in dust or the light from a flashlight comes in contact with fog in the air. In these situations, dust and water droplets cause the light to be reflected in a scattered pattern Read More
Potassium dichromate (K2Cr2O7) is an inorganic chemical reagent that is normally used as an oxidizer in industrial and laboratory applications. It is used to oxidize alcohols and convert primary alcohols to aldehydes and sometimes carboxylic acids. Unlike similar processes that use permanganate, only carboxylic acids result. The secondary alcohols are converted into ketones and no further oxidation is required. Potassium dichromate does not oxidize tertiary alcohols. The chemical is potentially harmful to human health and is a crystalline ionic solid that is a bright, red-orange color. Potassium Dichromate Uses When Read More
MagLev Trains are trains that rely on magnets or magnetic force to run. There are different kinds of MagLev Trains that have been developed and they differ on the technology used to attract the magnetic force or magnets to make the train run or levitate. Each project is developing its own version of Magnetic levitation but the main difference rests on the way the magnetic field is generated. The German model and the Japanese HSST (High Speed Surface Transport) use Electromagnetic Suspension (EMS). China in its Shanghai Maglev uses German Read More
Military experts believe that future wars will not be huge battles for territory as had happened in the past but rather small insurgencies spread over a wide area such as what eventually happened in Iraq. Thus, rather than a large force with heavy equipment that will take weeks to assemble and deploy, the US Army would need to be able to assemble and move out quickly and efficiently. Combat System Requirements Strategic agility which means that forces with the people and equipment needed to make a difference can be dispatched Read More
Laser eye surgery has been a major part of our society for more than a decade now. In that time, many people have decided to lose their glasses or just improve their vision by have a laser eye surgery performed. Many people, however, are curious about this procedure but are either skeptical of the benefits or are hesitant to participate in this trend due to lack of knowledge about the operation. In this article, we will learn about laser eye surgery, how it works, how much it costs, the benefits Read More
A Laser cutter is a machine that uses a laser to cut materials. The Laser Cutter works by making the laser enter through the side of the material that needs to be cut and shoots it through the axis of the beam. If a cut needs to be made and there are no edges near it, a small piercing is done before the cut. During a piercing, a high power concentrated pulse of laser beam slowly starts to make a hole, creating an edge to begin the laser cutting with. Read More
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