As the coronavirus tore through the world in 2020, and the United States and other countries confronted a shortage of tests designed to detect the illness, then-President Donald Trump secretly sent coveted tests to Russian President Vladimir Putin for his personal use.
Tau (Wikipedia)Tau /ˈtɔː, ˈtaʊ/ (uppercase Τ, lowercase τ, or τ; Greek: ταυ [taf]) is the 19th letter of the Greek alphabet, representing the voiceless dental or alveolar plosive IPA: [t]. In the system of Greek numerals, it has a value of 300.