Add the odds and get the squares!
1 + 3 = 4, 1 + 3 + 5 = 9, 1 + 3 + 5 + 7 = 16, 1 + 3 + 5 + 7 + 9 = 25, 1 + 3 + 5 + 7 + 9 + 11 = 36
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Guess the last and next totally odd-numbered date
The last totally odd numbered date any of us had seen in our lifetimes is 19.11.1999. It was the last calendar date composed of all odd digits that would occur for a very long time. The next odd day will be 1.1.3111, which is well over a thousand years away.
Tokyo to Honolulu – Fly back in time and relive it!
There is a massive gap in time zones between Honolulu and Tokyo. Honolulu is 19 hours behind Tokyo. Subtracting the 7 hours and 45 minutes flight time between these two cities gives us a trip difference of 11 hours and 15 minutes. Therefore, you would actually reach Honolulu more than 11 hours before you left Japan.
What does the word ‘robot’ mean?
A robot is a machine that sometimes resembles humans and carries out routine mechanical tasks on command with human-like skill. The word robot has its origins in the Czech word robotnik, which means a serf or a slave. Robots are used mainly in factories and in those activities which a human might find difficult to…
What does ZIP in ZIP code stand for?
The Zone Improvement Plan code, abbreviated as the ZIP code, is a system of postal codes that was introduced in the USA in 1963 to improve the efficiency of postal services, such as sorting and delivery. It comprises nine digits: the first three digits are assigned to a specific part of the USA, the next…
What is ‘a group of owls’ called?
The owl is believed to possess a wise disposition. Therefore, a group of owls is called a ‘parliament’. The word parliament is used as a collective noun in this case. Another collective noun for a group of owls is ‘wisdom’ – a wisdom of owls.