Lifeboat Foundation

A ground fault normally occurs in one of two ways: by accidental contact of an energized conductor with normally grounded metal, or as a result of an insulation failure of an energized conductor. When an insulation failure occurs, the energized conductor contacts normally non-current-carrying metal, which is bonded to a part of the equipment-grounding conductor.

In a solidly grounded system, the fault current returns to the source primarily along the equipment-grounding conductors, with a small part using parallel paths such as building steel or piping.

Continue reading “Why Ground Fault Protection Matters and Which Scheme For Sensing Ground Faults To Choose” »

The PneumoPlanet inflatable lunar habitat offers an opportunity for future lunar astronauts to comfortably live, eat and work on the moon, its designers say.

What to do and not do to become less stressed and more focused at work and home.

ICON has also completed a series of 3D-printed homes in Tabasco, Mexico. The company partnered with charity New Story in order to build 500 square-foot (47 square-metre) houses for families in need of shelter.

This community of homes withstood a 7.4 magnitude earthquake in June 2020 with no visible damage.

The Texan construction technology company is collaborating with BIG on a robotic construction project for the Moon.

Continue reading “ICON builds 3D-printed houses from disaster-proof concrete in Texas” »

Researchers from UNSW Sydney have analyzed millions of satellite photos to observe changes in beaches across the Pacific Ocean. The findings, published in Nature Geoscience today (Feb. 10), reveal for the first time how coastlines respond to different phases of the El-Niño-Southern Oscillation (ENSO) cycle.

ENSO is a natural climate phenomenon that causes variations in sea surface temperatures over the Pacific Ocean. The warming phase, known as El Niño, and the cooling phase, known as La Niña, affect weather patterns across different coastlines depending on the cycle.

Continue reading “Beach erosion: Satellites reveal how climate cycles impact coastlines” »

Veronica Roth (Tor)

THERE isn’t much world-building in Veronica Roth’s sci-fi retelling of Sophocles’s classic Greek tragedy Antigone. Then again, in Arch-Conspirator, there isn’t much world. A dusty dystopian city (Thebes in the original, but it isn’t clear where we are in the reboot) is all that remains after a thinly sketched environmental polycrisis has turned humanity into an endangered species.

Researchers at the University of Tsukuba have discovered a connection between the risk of functional disability or death in older adults and the distance they are willing to walk or cycle to reach common destinations (such as a friend’s house or a supermarket).

As they age, physical or cognitive decline can make it difficult for some older adults to navigate their community, affecting their quality of life and becoming a burden on society. However, a recent study by researchers at the University of Tsukuba demonstrates that a willingness to travel longer distances by walking or cycling may help reduce the risk of early functional disability and mortality.

A recent study published in Health and Place presents a model linking death and functional disability rates in older adults to the distances they are willing to travel on foot or bicycle for common community trips. The research found that older adults who were only comfortable with short distances – such as 500 meters or less for walking, or 1 kilometer or less for cycling – faced higher risks of functional disability and death.

We humans are obsessed with speed. We bred the fastest horse when we first started riding. We looked for ways to put insanely powerful engines in our cars when we first started building them.

Researchers at Kyoto University have joined forces with contractor Kajima Corp. to develop gravity-defying habitats required for use on the Moon and Mars, complete with their own transportation system.

The researcher’s ambitious idea also comes with a space train that is set to function like trains on Earth while at the same time generating artificial gravity.

#SpaceHabitat #Space #Gravity #SpaceTravel #SpaceTrain