1.3M views · 71K reactions | MUST WATCH: New footage shows how Hamas uses Al-Shifa hospital as a base for terror operations against Israel. No amount of media distortion, lies, or manipulations can change the truth. Hamas uses civilian infrastructure in their warfare tactics endangering the lives of civilians, healthcare workers, volunteers, and anyone else who gets in their way. | Maccabee Task Force | Facebook

#OnThisDay #OTD 1955 Scientists at the National Physical Laboratory in London completed the world's first caesium atomic clock. The very first accurate atomic clock was built in the UK at the National Physical Laboratory in London. Louis Essen and Jack Parry were the two physicists who built it. | BBC Archive