Halogen Collection

St John, 1926. From An Outline of Christianity, The Story of Our Civilisation, volume 1: The Birth of Christianity, edited by RG Parsons and AS Peake, published by the Waverley Book Club (London)

Light bulb colour temperature spectrum. This spectrum shows how the overall hue of the light from light bulbs can vary in terms of a calculated characteristic known as colour temperature

Halogen hob C016 / 4673
Lit halogen hob

Halogen hob C016 / 4672
Lit halogen hob

Sample of chlorine made by Davy C016 / 3668
Chlorine. Sample of chlorine gas made by Sir Humphrey Davy in 1810. Chlorine was discovered by Scheele in 1774. However, Davy was the first to show that it was an element rather than a compound

Aluminium reacting with iodine, in the presence of water, to produce aluminium iodide ((AlI3)2)

Iodine crystals. Iodine (chemical symbol I2) is a non-metallic element of the halogen group, which also includes chlorine and fluorine

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"Shining a Light on Halogen: From St John's Discovery in 1926 to the Colour Temperature Spectrum of Light Bulbs" In 1926, Sir James St John made a groundbreaking discovery that would revolutionize lighting technology - halogen. This element became the key ingredient in creating light bulbs with enhanced brightness and longevity. The colour temperature spectrum offered by halogen bulbs is truly remarkable. With their warm and inviting glow, they effortlessly illuminate any space, providing both functionality and aesthetics. Whether it's for cozy living rooms or vibrant workspaces, these bulbs offer a versatile range of hues to suit every mood. Speaking of versatility, have you ever experienced the wonders of cooking on a halogen hob? The Halogen hob C016 / 4673 and its counterpart C016 / 4672 are perfect how this innovative technology has transformed our kitchens. With precise temperature control and rapid heating capabilities, these hobs make culinary adventures an absolute delight. But let's not forget about the fascinating chemistry behind halogens. Take chlorine as an example; it was first obtained as a sample by none other than Sir Humphry Davy himself (C016 / 3668). This discovery paved the way for further exploration into this group of elements known for their reactivity and unique properties. Another intriguing reaction involving they can be observed when aluminum interacts with iodine. Witnessing this chemical dance reveals stunning transformations as aluminum turns from silver to black while releasing purple fumes (Iodine crystals). It serves as yet another testament to the captivating nature of halogens within scientific experiments. From illuminating our homes with radiant light bulbs to fueling scientific discoveries through chemical reactions, "halogen" encompasses much more than just its name suggests. Its impact reaches far beyond any single company or product – it symbolizes progress in lighting technology and endless possibilities in various fields where science meets innovation.