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Exploring the World of
        of clean water.
                                                                                             Morse Code and Flag Semaphores
        After talking about Japanese food culture, Olivia Sensei moved on
        to accommodation facts in Japan. She mentioned that houses in                        On the 8th of June 2021 (Tuesday), the Air Scout Troop held a talk
        Japan aren’t linked together like terrace houses in Malaysia; in fact,
        houses are separated by a small distance. This is said to prevent fire               on Morse code and flag semaphores. The talk started off with the
                                                                                             introduction of the two main speakers, Abner Philip Then Yi Hao and
        from spreading during a disaster. Furthermore, Japanese houses are                   Fong Tzyy Yu, both Student Advisors of the Air Scout Troop.
        normally designed with “genkan”, which means an entryway located
        inside the house directly in front of the door. Usually, the Japanese                                                      Abner then presented a video
        remove their shoes at the “genkan” and change into house slippers                                                          which introduced cryptography
        before stepping into other areas of the house. Japanese houses are                                                         during World  War 2, where
        usually also prepped with an evacuation place and a survival kit                                                           Americans at the time were
        near the door closest to the exit, so that the residents can protect                                                       able  to  communicate  using
        themselves during earthquakes. Japan is also well-known for their                                                          codes that the Japanese could
        cleanliness and  high  environmental  awareness.  Hence, Japan has                                                         not decrypt, aiding their victory.
        strict rules for garbage disposal, which varies from area to area. A tip                                                   The  video  clearly  pointed  out
        from Olivia Sensei was to be aware of garbage disposal rules while                                                         the importance of cryptology.
        travelling in Japan to avoid unnecessary trouble from disposing of
        litter.                                                                                                                    Afterwards,   Abner     started
                                                                                                                                   talking about flag semaphores,
        Moving on, Olvia Sensei introduced transport in Japan. Interestingly,                                                      which were invented by Claude
        people in Osaka, for example, ride their escalators on the right side,                                                     Chappe in the French revolution
        whereas  people  in  Tokyo  ride  on  the  left.  Thus,  it  is  important  to                                             to  transmit  war  signals.  This
        know the rules in each area to ensure the smooth flow of crowds. For                                                       method  is  commonly  used
        travellers visiting Japan, she recommended the Japan Rail (JR) pass.                                                       when  personnel  on  different
        Each pass differs according to area, but the JR pass is a good option                                                      mountain peaks want to
        because travellers can access all areas in Japan with just one pass.                                                       communicate  with  each  other.

                                                                                                                                   Besides that, lifeguards and
        The last section of the talk was a short Q&A session. Olivia Sensei                                                        maritime  troops  utilise  flag
        shared her earthquake encounter which made her deeply shocked,                                                             semaphores in their daily
        but she told us not to worry as the earthquake department provides                                                         routines. One is required to use
        instructions to the people, and Japanese buildings are mostly                                                              their hands and flags in order to
        antiseismic. She also gave advice and information to students who                                                          communicate with this system.
        are interested in studying abroad in Japan.                                                                                He then provided us with a
                                                                                                                                   video teaching the signals of

                                                                                                 Ph o t o by :                     flag semaphores.
                                                                                                 Photo by: Law Xi Yan SR2SCC
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