Researchers use X-rays to read 300-year-old ‘locked’ letter without opening it
Your emails might become historical evidence in a few centuries!
Your emails might become historical evidence in a few centuries!
The letter urges businesses and the public to wear masks so we can stop the virus.
© 2007-2023 ZME Science - Not exactly rocket science. All Rights Reserved.
© 2007-2023 ZME Science - Not exactly rocket science. All Rights Reserved.