https://ana.ir/en/news/11328/48-hours-of-backup-power-with-a-new-home-battery2026-11-04T10:32:58+03:3048 Hours of Backup Power With a New Home Batteryana.pressenhttps://ana.ir/media/413a4745ZTp3ZWJwfGY6MTIxMjU4NC5qcGd8ZnVpOjgxMjU1fGw6ZW58djox.webp48 Hours of Backup Power With a New Home Battery(Tehran Ana)- While most portable power stations waste a significant amount of energy as heat when converting direct current (DC) into alternating current (AC), a new 5,000-watt-hour home battery promises up to 48 hours of emergency power, with a conversion efficiency of 96%.https://ana.ir/en/news/11326/why-chronic-back-pain-changes-our-sense-of-self2026-11-03T15:04:01+03:30Why Chronic Back Pain Changes Our Sense of Selfana.pressenhttps://ana.ir/media/fcc57446ZTp3ZWJwfGY6MTIxMTkzMi53ZWJwfGZ1aTo4MTI0M3xsOmVufHY6MQ.webpWhy Chronic Back Pain Changes Our Sense of Self(Tehran Ana)- A new study has found that movement-triggered flare-ups of chronic back pain activate brain networks associated with self-identity, offering new insights into why the condition can be difficult to treat.https://ana.ir/en/news/11327/widespread-protests-sweep-across-germany2026-11-03T14:15:26+03:30Widespread Protests Sweep Across Germanyana.pressenhttps://ana.ir/media/3c3b2513ZTp3ZWJwfGY6MTIxMjAyNy53ZWJwfGZ1aTo4MTI0NHxsOmVufHY6MQ.webpWidespread Protests Sweep Across Germany(Tehran Ana)- Young people took to the streets in more than 30 German cities, including Berlin, Hamburg, Cologne, Munich, Frankfurt and Stuttgart, to protest rising living costs. With the closure of the Strait of Hormuz adding to economic pressures across Europe, demonstrators are urging Chancellor Friedrich Merz’s government to take action to curb the rising cost of living.