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1400
Hourglass
An hourglass (or sandglass, sand timer, sand clock or egg timer) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one -
1500
Sundial
A sundial is a horological device that tells the time of day (referred to as civil time in modern usage) when direct sunlight shines by the apparent position of the Sun in the sky. In the narrowest sense of the word, it consists of a flat plate (the dial) and a gnomon, which casts a shadow onto the dial. -
Milk Chute
The chute had an exterior and interior door. The milkman would come and use the exterior door to take out the empty bottles and put in the fresh milk and the door on the inside would be used to take it out. -
Overhead projector and slide projector
An overhead projector (often abbreviated to OHP), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience. -
Type Writer
A typewriter is a mechanical or electromechanical machine for typing characters. Typically, a typewriter has an array of keys, and each one causes a different single character to be produced on paper by striking an inked ribbon selectively against the paper with a type element. -
Phonograph and phonograph record
phonograph, also called a record player, instrument for reproducing sounds by means of the vibration of a stylus, or needle, following a groove on a rotating disc. -
Laser disc
The LaserDisc (LD) is a home video format and the first commercial optical disc storage medium, initially licensed, sold, and marketed as MCA DiscoVision (also known simply as "DiscoVision") in the United States in 1978 -
Phonebook
A telephone directory commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a subscriber identified by name and address to be found. -
Videocassette Recoder
A videocassette recorder (VCR) or video recorder is an electromechanical device that records analog audio and analog video from broadcast television or another source on a removable, magnetic tape videocassette, and can play back the recording. -
Flip Phone
A hinged cellphone that is more compact when closed. The cover "flips open" to reveal the screen, keypad, speaker, and microphone. Also called a "clamshell phone," the flip phone is a basic cellphone without Internet access.
