News On Japan

Japan wants to bring artificial gravity to the moon

The proposed 1,300-foot-tall lunar structure would spin three times every minute, generating Earth-like gravity for its inhabitants.

Jul 12, 2022 (gizmodo.com) - Interest in the Moon has been reignited recently, and Japan is looking to get in on the fun. Researchers and engineers from Kyoto University and the Kajima Corporation have released their joint proposal for a three-pronged approach to sustainable human life on the Moon and beyond.

The future of space exploration will likely include longer stays in low gravity environments, whether in orbit or on the surface of another planet. Problem is, long stays in space can wreak havoc on our physiology; recent research shows that astronauts can suffer a decade of bone loss during months in space, and that their bones never return to normal. Thankfully, researchers from Kyoto University and the Kajima Corporation are seeking to engineer a potential solution.

The proposal, announced in a press release last week, looks like something ripped straight from the pages of a sci-fi novel. The plan consists of three distinct elements, the first of which, called “The Glass,” aims to bring simulated gravity to the Moon and Mars through centrifugal force.

Gravity on the Moon and Mars is about 16.5% and 37.9% of that on Earth, respectively. Lunar Glass and Mars Glass could bridge that gap; they are massive, spinning cones that will use centrifugal force to simulate the effects of Earth’s gravity. These spinning cones will have an approximate radius of 328 feet (100 meters) and height of 1,312 feet (400 meters), and will complete one rotation every 20 seconds, creating a 1g experience for those inside (1g being the gravity on Earth). The researchers are targeting the back half of the 21st century for the construction of Lunar Glass, which seems unreasonably optimistic given the apparent technological expertise required to pull this off.

News On Japan
POPULAR NEWS

Japan's total population, including foreign residents, stood at 122.97 million as of October 1, 2025, down 3.17 million from the previous census in 2020, marking only the third decline since the national census began in 1920.

Typhoon No. 26 is forecast to move through the southern Izu Islands near Hachijojima through the morning of October 1, bringing the risk of torrential rain, strong winds and severe weather before heading east of Japan. Up to 150 millimeters of rain is forecast in the southern Izu Islands during the 24 hours through the morning of October 1, raising the possibility of rainfall reaching warning levels.

A woman in her 50s with severe heart failure underwent what was described as the world's first surgery using commercially available iPS cell-derived heart muscle sheets at an Osaka hospital on September 29, marking the first practical use of the regenerative treatment.

Tokyo recorded rain for a 34th consecutive day on September 29, setting a new all-time record for the capital, but the prolonged wet spell could finally end after Typhoon No. 26 passes the Izu Islands between the night of September 30 and the morning of October 1.

The University of Tokyo has selected professor Yuko Fujigaki, 64, as its next president, making her the first woman to lead Japan's most prestigious university.

MEDIA CHANNELS
         

MORE Sci-Tech NEWS

Japan's wild population of Oriental storks has exceeded 700 birds following decades of conservation efforts, with successful breeding across the country putting the population on track to surpass 1,000 within two years.

A rare pod of around 50 dolphins was spotted swimming through the Seto Inland Sea off Ozu, Ehime Prefecture, with dozens of dorsal fins repeatedly breaking the surface as the animals moved together.

Tesla unveiled its Cybercab in Japan for the first time on September 11, showcasing an AI-powered autonomous taxi designed without a steering wheel or pedals.

Large volumes of floodwater poured into the Metropolitan Area Outer Underground Discharge Channel in Kasukabe, Saitama Prefecture, following heavy rain on September 7, prompting the massive underground flood-control facility known as the "Underground Temple" to go into operation.

Fluorescent lamps that have illuminated Japanese homes and workplaces for decades are approaching the end of production, with Panasonic preparing to wind down a business it has operated since 1951 while experts warn that incorrectly replacing some fixtures with LEDs could create a fire risk.

Osaka-based spray nozzle maker IKEUCHI is expanding applications for its proprietary "Dry Fog," an ultra-fine mist that can cool, humidify and create visual effects without leaving surfaces wet, with the technology now being used in factories, livestock farming, crop cultivation and tourist attractions in Japan and overseas.

Japanese companies are moving closer to commercializing photonics-electronics convergence technology that replaces part of conventional electrical data transmission with optical signals, potentially allowing huge volumes of data to move with lower latency while sharply reducing power consumption as artificial intelligence drives rapid growth in electricity demand from data centers.

A new generation of optoelectronic integration technology developed over four decades by Japanese companies is moving closer to commercialization, offering a way to transmit huge volumes of data with low latency while sharply reducing the electricity consumed by data centers as artificial intelligence drives explosive growth in computing demand.