The hardware setup shown below includes the Arduino Uno R4, a DHT11 sensor, and the built-in Wi-Fi for email alerts. The DHT11 is connected with VCC to 5V, GND to ground, and the data pin to Digital ...

The 4-H program offers more than 200 projects, but if youth want to explore a topic not on the list, they can create their ...

During the 1990s the Chornobyl Nuclear Power Plant – formerly the Chernobyl NPP – continued operating with its remaining three RBMK reactors, but of course the 1970s-era automation ...

Mitochondria are essential for cell survival, repair, and adaptation. Not only do they generate most of the energy needed ...

Diodes let electricity flow in only one direction, helping circuits work safely and correctly. This video shows how they do ...

Inside each of your cells lies a nucleus, its master command center. Protected inside each nucleus are your chromosomes, ...

Catalysts are essential to modern industry, accelerating reactions used to produce everything from fertilizers and fuels to medicines and hydrogen energy. But until now, scientists could not directly ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

In 1869, a group of Massachusetts reformers persuaded the state to try a simple idea: counting. The Second Industrial Revolution was belching its way through New England, teaching mill and factory ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. What is Bluetooth? – Henry, age 13, Somerville, ...

Will you have Presidents Day off work? The federal holiday if often marked by a weekend of huge shopping deals. For some workers, this is the last three-day weekend until Memorial Day in May. But for ...

Amanda Smith is a freelance journalist and writer. She reports on culture, society, human interest and technology. Her stories hold a mirror to society, reflecting both its malaise and its beauty.