Provides an overview of Brazil, including key dates and facts the largest country in South America.

US officials are expecting the flow of would-be migrants and asylum seekers to spike after 11 May.

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Defense Secretary Lloyd Austin and Secretary of State Antony Blinken are making the Biden administration's case to Congress that the United States should immediately send major aid to both Israel and Ukraine

An economic seesaw between China and Russia in Central Asia is moving toward a new equilibrium for Kazakhstan,

NEW YORK & SAN FRANCISCO--(BUSINESS WIRE)--Sep 18, 2023--

Scientists have invented a cloak inspired by Roman mythology that can cool anything it covers during the day and warm it up at night. The Janus thermal cloak, named after the two-faced Roman god Janus, could be used in everything from electric cars to space craft, with the researchers claiming it could even be used to build off-planet colonies on the Moon and Mars. “The thermal cloak is like clothes for vehicles, buildings, spacecrafts, or even extraterrestrial habitats to keep cool in summer and warm in winter,” said Kehang Cui, a materials scientist at Shanghai Jiao Tong University, who was involved in the research. “The cloak works basically the same way the Earth cools down, through relative cooling. The Earth is covered by the atmosphere, and the atmosphere is transparent to a certain range of electromagnetic energy we radiate.” The futuristic material, made of silica and aluminium, is able to achieve the heating and cooling effect passively, without the need for any outside energy. Covering electric vehicles in the cloak helps to cool them 8°C on a hot day and warm them 6.8°C on a cold night, helping to prevent deterioration of the battery. “This is the first time that we could achieve warming above the ambient temperature by almost 7°C during winter nights,” said Professor Cui. “This is also kind of surprising to us – there’s no energy input or sunshine and we can still get warming.” A study detailing the research, titled ‘Scalable and durable Janus thermal cloak for all-season passive thermal regulation’, was published in the scientific journal Device on Tuesday. Read More Record-breaking sugar battery could supercharge transition to renewable energy

Officials say a roller coaster train has derailed in Stockholm, sending some passengers plunging to the ground in an amusement park accident that left one dead and nine injured

Preseason Top 25 college football rankings for the 2023 season. Florida State is coming for Georgia, Texas is back, Alabama and Ohio State have much to prove.Week 0 is so close you can taste it and college football fans are already salivating.Kirby Smart and the Georgia Bulldogs are going fo...

Peloton is recalling more than 2 million of its exercise bikes because the bike’s seat post assembly can break during use, posing fall and injury hazards

Clint Eastwood, who is still directing movies at 93, is a demanding taskmaster on set, Tom Hanks revealed

By Paritosh Bansal and Tatiana Bautzer NEW YORK The banking sector is not yet out of the woods,