The Network Access Point (NAP) system was developed by the National Science Foundation (NSF) to replace the NSFNet. It allowed different network service providers to exchange information and connect their networks, leading to the formation of the modern Internet. The NAPs were later replaced by Internet Exchange Points (IXPs). A network access point (NAP) is […]
A wireless access point broadcasts a Wi-Fi signal that mobile devices can connect to, often for free. They are found in businesses and can be created by consumers through their mobile carrier. Some are restricted for employee use and utility companies are implementing city-wide hotspots. A wireless access point, or hotspot, is a location that […]
A restore point is a previous point in time where a user can restore their computer’s system in case of serious problems. Windows computers have a preset restore point, and it is possible to roll back to a restore point that takes a few days or weeks. Some software programs also have an internal restore […]
Adding a solute to a liquid lowers its freezing point, allowing ice cream to be made and roads to be de-iced. Salt, sand, and antifreeze are commonly used solutes. The addition of foreign molecules causes fluctuations in temperature that accelerate melting. The percentage of antifreeze used should be adjusted for different climates. A freezing point […]
Materials can soften without melting, and a softening point can be determined for quality control. The glass transition temperature is when a material becomes more flexible. Tests like the vicat and ring and ball can determine softening points. Softening point tests are used to determine optimum handling temperatures for adhesives. Synthetic polymers have a wider […]
Melting point is when a solid turns into a liquid due to heat. It is unique to pure substances and can be used to identify them. Water melts and freezes at 32°F (0°C), while other substances have extreme melting points. Some liquids can be supercooled, and some objects lack a melting point, like carbon dioxide […]
Access point mapping, also known as war driving, is the unauthorized use of unsecured wireless LANs. GPS technology is used to locate open networks, which can be used for anything from checking email to obtaining business documents. To prevent access point mapping, businesses and individuals should use built-in security technology and set up a firewall. […]
Proteins have different pH values due to their amino acids. The isoelectric point (pI) is when a protein has no net charge. Isoelectric focusing separates proteins with known pI from a mixture. Glycosylation can affect pI. Proteins can be sequenced and analyzed for purity. Proteins are made up of chains of amino acids, each of […]
A point release is a minor update to software that increases the version number after a decimal point. It typically fixes bugs or adds minor improvements, but can also include large-scale revisions. Version numbers track changes and are separated by decimal points, with more decimal points indicating fewer changes. Unusual numbering schemes may be used, […]
Smoke point is the temperature at which cooking oil decomposes and gives off smoke. Saturated fats have low smoke points and are less healthy. Unrefined oil has a lower smoke point than refined oil. Avocado and canola oil have high smoke points, while corn oil is good for frying. Smoke point is a term that […]
Saturation point is the maximum amount of substance an object can absorb, including liquids, gases, chemicals, and energy. Objects have different saturation points based on size, density, and temperature. The term can also refer to people who have reached their limit of learning or alcohol consumption. The saturation point is the point at which an […]
An entry point is the starting point of a program, module, or function, identified by a memory address. In linear programming, it is the first line of code, while in modular programming, it is the initial module or the “Main()” function in C. Older programs may have multiple entry points, but modern ones have a […]
New materials and alloys are constantly being created, making it difficult to determine the material with the highest melting point. Currently, hafnium tantalum carbide has the highest melting point at 4488 K. Carbon has the highest melting point of chemical elements at 4300-4700 K, while tungsten has the second highest at 3695 K. Ceramics are […]
Helium has the lowest freezing point and does not freeze under typical pressures due to its high zero-point energy. Solid helium only exists under high pressure and low temperature, and is virtually invisible. Helium is used as a cryogenic cooling agent and exhibits superfluidity at very low temperatures. The material with the lowest freezing point […]
Pour point is the temperature at which a lubricant or fluid will move freely. It is important in materials testing and oil and gas companies pay attention to it for drilling and transportation. Lubricant manufacturers also have concerns. Testing can be done by placing a sample container in a cool environment. Labels may need to […]
Petroleum is made up of hydrocarbons in various states, including crude oil and natural gas. The refining process produces usable products such as diesel, gasoline, and heating oil. Each product has a specific cloud point temperature at which wax crystals form, which can cause damage to engines and equipment. Standardized testing methods, such as constant […]
Reflex points can be manipulated through acupuncture, acupressure, or reflexology massage to stimulate nerve endings and support healthy body functions. Reflexology uses reflex points on the hands, feet, and ears, while acupuncture and acupressure use reflex points identified in traditional Chinese medicine. These therapies can relieve muscle tension, manage stress, relieve pain, soothe nausea, and […]
The critical point is a condition in thermodynamics where the distinction between gas and liquid phases disappears, creating a supercritical fluid. This point is displayed on a phase diagram and has many applications in science and industry, such as in the production of biodiesel fuels. Critical point is a term used in thermodynamics to describe […]
The point collar is a popular collar style in fashion, often worn with a tie. Prong collars should be well-pressed and have a bracket for stability. The knit collar is versatile and complements most jacket styles. Choosing the right collar is important as it is always visible and can affect the wearer’s appearance. Dot collars […]
The inflection point is where a curve changes from negative to positive curvature or vice versa. It can be found by visualizing the curve’s concavity or mathematically by setting the second derivative equal to zero and testing values on either side of x=0. It is important for anticipating system behavior in real-world applications. The inflection […]
