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Saudia Arabia’s new cubed skyscraper can fit 20 Empire State buildings

The New Murabba, which will house hundreds of thousands of residents, is one of the many mega projects part of the Saudi Vision 2030 plan.

If you thought NEOM was the most precious brainchild of Saudi Arabia, then you’re wrong. On Thursday, Saudi’s Crown Prince, Mohammad bin Salman bin Abdulaziz, unveiled plans to supposedly build the world’s largest downtown development in Riyadh called New Murabba, covering over seven square miles.

And that’s not even close. Murabba’s main character will be a ginormous, 400-meter-high, cubed skyscraper called the Mukaab. The Mukaab will be one of the largest structures — large enough to house 20 Empire State buildings.

West’s growing cleantech is denting Chinese dominance over green energy

Climate change policy has entered a new era. The growing row between the United States and the European Union over the impacts of the new American green subsidy regime makes that all too clear. Yet, in many ways, this story is ultimately about China.

For the last 20 years, developed countries have used three main types of policies to cut their greenhouse gas emissions. Renewable energy mandates have required electricity generators to invest in solar, wind, hydro, and geothermal power. Emissions trading schemes for energy and industrial businesses put a price on carbon. And energy efficiency standards have been progressively improved on a whole range of products, from vehicles and white goods to homes.

Elon Musk’s to build Project Amazing subdivision near Texas factory

US-based entrepreneur Elon Musk’s Boring Company is developing a tract of land in Texas near as housing for its employees.

Called Project Amazing, the development will be located in Bastrop County near Austin and contain 110 homes built for workers at the nearby facilities of the Boring Company.

Developed by homebuilder Lennar, the community will be situated in a largely rural area on a tract of land owned by Gappes Bass, an affiliate of the Boring Company, according to Business Insider.

Mui Board enables smart home control from a plank of wood

Japanese “calm technology” company Mui Lab has unveiled the consumer-ready version of its Mui Board – a minimalist control hub for the smart home that looks like an unassuming block of wood.

Designed for wall mounting, the Mui Board is a plank of timber that lights up from within using a subtle white LED dot matrix display.

This can be used like a touch screen to control lighting, curtains, thermostats, speakers and other elements of the home.

Why Ground Fault Protection Matters and Which Scheme For Sensing Ground Faults To Choose

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.

If the ground return impedance were as low as that of the circuit conductors, ground fault currents would be high, and the normal phase-overcurrent protection would clear them with little damage.

ICON builds 3D-printed houses from disaster-proof concrete in Texas

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.


Construction technology company ICON is making four 3D-printed houses in Austin, Texas, from concrete that’s designed to cope with extreme weather.

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