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  • microchip - monolithic integrated circuit, a miniaturized electronic device containing a complete circuit for a certain function
  • microcosm - community, place, or situation regarded as encapsulating in miniature the characteristic qualities or features of something much larger
  • microfilm - photographic film with very high resolution used to keep miniaturized photographs of documents for archival purposes
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How does a biometric passport work?

A biometric passport, also known as an e-passport, includes a microchip that stores the passport holder's personal information, such as name, date of birth, and a digital photograph. This information can be verified electronically through biometric features like facial recognition or fingerprints, enhancing security and making it harder to counterfeit or tamper with the passport. When scanned at border control, the microchip in the passport communicates with the reading device to authenticate the traveler's identity by comparing the stored biometric data with the live biometric information provided.


Function of Objective lens?

The objective lens in a microscope collects and focuses light onto the specimen, producing an enlarged image that can be viewed through the eyepiece. By controlling the magnification and resolution of the image, the objective lens plays a crucial role in determining the quality and clarity of the observed sample.


what is a personal identification chip that is about the size of a grain of rice and implanted under the skin?

It is called a RFID microchip or a biochip. It is a small device that can store information and be used for identification purposes. It can be implanted under the skin, typically in the hand, for convenience in everyday activities such as unlocking doors or making payments.


Can a fallen log be considered an ecosystem?

Yes, a fallen log can be considered an ecosystem. It provides habitat and resources for various organisms such as fungi, insects, and small animals, creating a microcosm of biodiversity. Decomposition processes also take place in the log, further enriching the ecosystem.


What is Biometric technoloy?

Biometrics is the measurement and statistical analysis of people's physical and behavioral characteristics. The technology is mainly used for identification and access control, or for identifying individuals that are under surveillance. The basic premise of biometric authentication is that everyone is unique and an individual can be identified by his or her intrinsic physical or behavioral traits. (The term "biometrics" is derived from the Greek words "bio" meaning life and "metric" meaning to measure.) There are two main types of biometric identifiers:Physiological characteristics: The shape or composition of the body.Behavioral characteristics: The behavior of a person.Examples of physiological characteristics used for biometric authentication include fingerprints; DNA; face, hand, retina or ear features; and odor. Behavioral characteristics are related to the pattern of the behavior of a person, such as typing rhythm, gait, gestures and voice. Certain biometric identifiers, such as monitoring keystrokes or gait in real time, can be used to provide continuous authentication instead of a single one-off authentication check. Other areas that are being explored in the quest to improve biometric authentication include brainwave signals, electronic tattoos, and a password pill that contains a microchip powered by the acid present in the stomach. Once swallowed, it creates a unique ID radio signal that can be sensed from outside the skin, turning the entire body into a password.