Energy & Green Tech
The world's transition to clean energy sources must be "just" and financed by the hydrocarbon trade, the climate change minister of oil-rich United Arab Emirates told AFP.
Jul 19, 2022
0
3
Energy & Green Tech
A new self-powered, wristwatch-style health monitor invented by researchers at the University of California, Irvine can keep track of a wearer's pulse and wirelessly communicate with a nearby smartphone or tablet—without ...
Jul 13, 2022
0
99
Software
Soon, computers could sense that users have a problem and come to the rescue. This is one of the possible implications of new research at University of Copenhagen and University of Helsinki.
Jun 24, 2022
0
199
Internet
Within minutes of losing cellphone and internet service, residents in a remote swath of Arizona were quick to come up with theories about why.
Jun 20, 2022
0
10
Consumer & Gadgets
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 ...
Jun 2, 2022
0
86
Engineering
Researchers have developed 3D printed artificial heart valves designed to allow a patient's own cells to form new tissue. To form these scaffolds using melt electrowriting—an advanced additive manufacturing technique—the ...
Jun 2, 2022
0
328
Machine learning & AI
Chinese researchers have established CAS(ME)3, a large-scale, spontaneous micro-expression database with depth information and high ecological validity. It is expected to lead the next generation of micro-expression analysis.
May 16, 2022
0
5
Engineering
The complex aerodynamics around a moving car and its tires are hard to see, but not for some mechanical engineers.
May 12, 2022
0
248
Electronics & Semiconductors
Self-charging smartwatches and health trackers could be a step closer following the development of tiny mechanical devices powered by movement, a study suggests.
Apr 26, 2022
0
143
Security
Have you ever felt a creeping sensation that someone's watching you? Then you turn around and you don't see anything out of the ordinary. Depending on where you were, though, you might not have been completely imagining it. ...
Mar 14, 2022
0
32
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
