Robot “Nose” and “Tongue”

Humans taste using a mix of cells in the nose and tongue, these send information to the brain. in the nose these cells, called olfactory receptors are triggered by different chemicals in what you are eating, the cells in the tongue, called taste buds, also help distinguish different food.

Find out more here

A Robot does not have organic cells with which to detect chemicals, however their are other ways to work out the chemicals that something consists off. For this we use the emission / absorption spectrum of a chemical.

Just like objects having different colours due to if they absorb or reflect the light, gases reflect and absorb light the same. As such if you were to vaporise a solid into a gas and shine light through it, or heat it up so that it admits light, then you can see what chemicals are in the gas. you may do this at school by doing flame tests, where you burn chemicals over a Bunsen burner.

 

spectroscopy

Above is an image of Emission spectra (The colours a gas emits when heated) and Absorption (The colours a gas absorbs) theses are the same colours for a given chemical, but are not always the same colour as the solid form.

Find out more by looking at the spectrometer simulator below.

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Dr James Davies MP Supports G2G Communities “I am very proud to support G2G Communities and would like to thank you for the dedication you have shown to the community of Rhyl, the outreach work also ensures that the benefits of this organisation are not only felt in Rhyl but throughout the Vale of Clwyd. It is encouraging to see that you are able to target the most hard to reach members of the community and offer them opportunities they may not have had access to or felt able to engage with previously.” – Read the full article >

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Sandie on the New Skills, New Life Course “I have only been at G2G Communities for a short time but have gained valuable experience in computer skills. All the staff has been friendly and helpful. It has not only improved my computer skills, but has also helped me with my own self confidence. If anyone was to ask if doing this course was worth it I would certainly encourage them to do it.” – Read the full article >

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Liam on the Emergency First Aid Course “The Emergency First Aid Course was a very useful option as it only lasted one day and gained me a qualification which lasts 3 years. The tutoring was very good and grabbed my attention all the way through. I would recommend this course to anyone who is given the option to do it, 10 out of 10” – Read the full article >

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Charles on The New Skills, New Life Course “I have learned a lot here, all the one to one support has helped me learn quicker and better, any problems I have had they sit down with me and talk it over, which personally I find easier to handle rather than someone standing in front of a class and just dictating to me. This course has helped me to get job interviews, has given me confidence to ask questions and get answers, I am very glad to have been on this course.” – Read the full article >

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