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Apple first introduced the AirTag in April 2021, and then followed it up with a second-generation version in January 2026. The small circular ‌AirTag‌ is designed to be attached to items like keys and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Gordon Scott has been an active investor and ...

Feb. 3, 2026 Researchers have found that manganese, an abundant and inexpensive metal, can be used to efficiently convert carbon dioxide into formate, a potential hydrogen source for fuel cells. The ...