dB vs dBm When a physical quantity, such as power or intensity, is measured relative to a reference level it is expressed in decibels (dB), which is a logarithmic unit. Decibel is considered as a dimensionless unit because it is a ratio of two quantities with the same unit thus cancellation takes place. It is used for …

Eurostar vs TGV TGV is a French acronym that stands for high speed train, and indeed TGV is one of the fastest train services in the world. It is a rail service that is the pride of France operating at high speeds of around 300kmph. It was launched in 1981 between Paris and Lyon, and has been continuing and spread in …

Key Difference: Goods are considered as tangible objects. Services are intangible commodities that cannot be touch, felt, tasted, etc. Almost all things can be separated into goods and services. These are very different from each other, though in today’s world there are a variety of companies that offer both goods and …

Key difference: The two phrases ‘How Are You’ and ‘How Are You Doing’ are commonly used as part of a greeting. While, both can be used at any and all instances, it is generally considered that ‘how are you’ is a more formal and reserved greeting than ‘how are you doing.’ ‘How are you doing’ is mainly used more in a …

The key difference between methylated spirits and mineral turpentine is that methylated spirits have a violet colour while mineral turpentine is a clear liquid. Methylated spirit and mineral turpentine are two important types of solvents. These are organic solvents, and their compositions and applications are different …

Wealth Maximization vs Profit Maximization   The aim of any business is to maximize profitability and minimize losses. In order to meet financial goals, organizations require a financial management plan. There are two forms of financial management; the traditional profit maximization approach and the more modern …

Les cappuccinos sont préparés à partir d’espresso, de lait cuit à la vapeur et de mousse de lait à parts égales, tandis que les lattes consistent à ajouter du lait cuit à la vapeur à un espresso. Pendant ce temps, les macchiatos sont préparés en ajoutant une touche de lait à un espresso. Est un macchiato plus fort …

The main difference between tapestry and cross stitch is that tapestry usually involves tent stitches while cross-stitch involves a stitch with the shape of X. A tapestry is a form of embroidery design that has been popular over many centuries. They have been commonly used as wall hangings or upholstery fabrics. Cross …

What Is A Step Index Fiber? In optical fiber, a step index fiber is a fiber characterized by a uniform refractive index within the core and a sharp decrease in refractive index at the core-cladding interface so that the cladding is of a lower refractive index. In a step index fiber, the light rays propagate in zig-zag …

Most multi-cellular organisms require a mechanism for transporting nutrients throughout their bodies and for removal of waste products. The circulatory system has evolved over time from simple diffusion through cells, in the early evolution of animals, to a complex network of blood vessels that reach all parts of the …