In linguistics, a phatic expression (English: , FAT-ik) is a communication which primarily serves to establish or maintain social relationships. In other words, phatic expressions have mostly socio-pragmatic rather than semantic functions. They can be observed in everyday conversational exchanges, as in, for instance, exchanges of social pleasantries that do not seek or offer information of intrinsic value but rather signal willingness to observe conventional local expectations for politeness. Other uses of the term include the category of "small talk" (conversation for its own sake) in speech...

The cultural and artistic events of Italy during the period 1400 to 1499 are collectively referred to as the Quattrocento (UK: , US: , Italian: [ˌkwattroˈtʃɛnto]) from the Italian word for the number 400, in turn from millequattrocento, which is Italian for the year 1400. The Quattrocento encompasses the artistic styles of the late Middle Ages (most notably International Gothic), the early Renaissance (beginning around 1425), and the start of the High Renaissance, generally asserted to begin between 1495 and 1500. == Historical context == After the decline of the Western Roman Empire in ...

ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, an Xtensa LX7 dual-core microprocessor, or a single-core RISC-V microprocessor and includes built-in antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power-management modules. ESP32 is created and developed by Espressif Systems, a Chinese company based in Shanghai, and is manufactured by TSMC using their 40 nm process. It is...