Category Archives: Science Communication

Communicating Science Through Robots

In our science communication class, we talk about different strategies and mediums to ultimately help us get our message across easily. But, have you ever thought about learning science through a robot? For one company, robot teachers aid them in their mission to introduce young people to technology and to gear students towards scientific careers. Specifically, Aldebaran has developed NAO, a robot teacher that is aimed at engaging students in computer and science classes throughout elementary school to university.

NAO, a robot teacher. Source: LinuxTag Flickr

NAO is a 58-cm tall humanoid robot that can speak, sit, stand, walk and recognize speech. The robot is also programmed to speak up to 19 different languages.

The complexity of NAO’s teaching differs depending on the education level. For example, in elementary school, NAO can help teach children their multiplication tables, whereas in university, NAO can also be used to challenge students with problems in business and society.

NAO_waving

NAO, waving. Source: Anonimski Wikimedia Commons

For St. Dominic School, NAO has been a great addition to their science lab for the past year. They use the robot to teach elementary children the fundamentals of basic programming. For example, children learn to program its movements from kicking a soccer ball to waving hello. While this serves as a great introduction to high school, a teacher from the Career and Technical Education Academy believes its use in higher level education could also look great on résumés. Operating a robot is surely something that may impress certain information and communication technology companies.

An article in Channel NewsAsia suggests NAO’s mere presence engages students, especially students with autism. Autistic students have trouble with social interaction, thus the robot allows a different form of interaction with the student. It can respond perfectly just like a human, but the idea is that since students are more keen to play with robots, they are seen as more approachable than human teachers. In a recent research study, they show that children with autism were more engaged with their tasks and found them more enjoyable with a robot compared to an adult.

I found NAO to be an interesting innovation because it engages students in not only science, but communication skills in general. It provides some things that human teachers cannot such as hands-on programming and an enjoyable method of interaction for autistic students. NAO may not be a necessary tool in helping students, but it is definitely a creative and innovative option for schools that want to try something new. With a hefty price tag of $7,990, NAO is unfortunately only limited to schools that have the sufficient funds to afford it. Hopefully, the robot can be much more affordable in the future so it can be used under a broader spectrum.

Check out this video below by AldebaranRobotics, showing NAO being used in a British primary school’s class.

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-Ian Villamin

The Imitation Game. First history of computer hacking.

I am sure we have all heard about the hacking Sony Pictures Entertainment. Thousands of emails and personal information of Sony’s employees were released online. While the hackers call themselves to be “Guardians of Peace” or “GOP”, the United States officials claim the hackers came from North Korea and the attack was a response to the release of the film “The Interview”, an accusation that Kim Jong-Un denied. How safe is your computer? I think is it a good time for us to take a look at the history of computer hacking and security.

Naval Enigma machine with 4 rotors. Source: https://www.flickr.com/photos/oxborrow/37527527/

Naval Enigma machine with 4 rotors. Source: Flickr

The earliest computer hacking is believed to be the cryptanalysis of the Enigma machine. Enigma machine was a cipher machine used from the 1920s to the WWII, mostly by the Nazi Germany. The earliest model has 3 rotors, which means the scrambler could be set in 26 x 26 x 26 = 17576 ways.

The first major breakthrough came from Marian Rejewski. The 27 years old Polish mathematician worked for the Polish Government in the early 1930s to break the Enigma machine. Using permutation group theory, he successfully worked out the logical structure of the machine.

Marian_Rejewski. Source: Wikipedia

Marian_Rejewski. Source: Wikipedia

Unfortunately for the Poles, he Nazi soon figured out their system has been hacked. They made several modifications to the system including increasing the number of rotors from 3 to 5, which increased the scrambler to 26 x 26 x 26 x 26 x 26 ways. Given the situation in Poland at that time, the Polish Government could not supply Rejewski with the resources he needed to break the new system.

The Enigma machine remained unhackable until 1939, when the 27 years old English mathematician Alan Turing started working for the GC&CS to hack the Enigma. Based on Rejewski’s works and the vast resources committed by the UK Government, Turing designed the “British bombe”, an electromechanical device that can decipher German secret message during the WWII. By 1945, all German can be decrypted within a day and it gave out all their plans to the Allied and turned the tide of the war.

Alan Turing. Source: Wikipedia

Alan Turing. Source: Wikipedia

If you are interested in knowing more about Alan Turing and how his work, you can check out the historical drama “The Imitation Game” starring Benedict Cumberbatch and Keira Knightley.

Blog by: Yiu Leung Wong