Engineering

Tattoo-like skin health monitor needs no batteries

(Tech Xplore)—An international team of researchers has developed an ultra-thin health monitoring device that affixes to the skin like a patch and looks somewhat like a tattoo. As they note in their paper published in the ...

Software

New app revolutionizes safety for women walking alone

Two University of Bath graduates have launched their revolutionary women's safety smartwatch app, Epowar, that monitors heart rate and body motion to sense distress and automatically sends an emergency alert if the wearer ...

Consumer & Gadgets

Tracking sleep with a self-powering smart pillow

The human body needs sleep as much as it needs food and water. Yet many people fail to get enough, causing both mind and body to suffer. People who struggle for shut-eye could benefit from monitoring their sleep, but they ...

Engineering

Are we there yet? Time slows down on crowded train

Testing time perception in an unusually lifelike setting—a virtual reality ride on a New York City subway train—an interdisciplinary Cornell research team found that crowding makes time seem to pass more slowly.

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Heart

The heart is a muscular organ in all vertebrates responsible for pumping blood through the blood vessels by repeated, rhythmic contractions, or a similar structure in annelids, mollusks, and arthropods. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart."

The heart of a vertebrate is composed of cardiac muscle, an involuntary striated muscle tissue which is found only within this organ. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during a lifetime (about 66 years). It weighs on average 250 g to 300 g in females and 300 g to 350 g in males.

This text uses material from Wikipedia, licensed under CC BY-SA