Business

From 'Sam-suck' to Apple rival: the Samsung transformation

Military-style management and an unquestioning reverence for the founding Lee family have fuelled Samsung's transition from the world's most ridiculed phonemaker to its biggest, says the author of a new book.

Automotive

Confidence in automated systems

When it comes to cars that drive themselves, most people are still hesitant. There are similar reservations with respect to onboard sensors gathering data on a driver's current state of health. As part of the SECREDAS project, ...

Energy & Green Tech

Wearable health tech gets efficiency upgrade

North Carolina State University engineers have demonstrated a flexible device that harvests the heat energy from the human body to monitor health. The device surpasses all other flexible harvesters that use body heat as the ...

Energy & Green Tech

The paints that eat pollutants and heat homes

Applying a coat of paint on the walls of a house may soon help to heat it, saving energy and reducing CO2 emissions. It could also clean the air that we breathe, breaking down chemicals and pollutants, and eliminating harmful ...

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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