نوبل الكيمياء عامَ 1953.. رائدُ كيمياءِ البول...

قدْ لا يثيرُ الكبريتُ، برائحتِه المميزةِ ولونِه الأصفرِ، أفكارًا مباشرةً حولَ العناصرِ الأساسيةِ للحياة، لكنَّه عنصرٌ لا غِنى عنه في الحياةِ كما نعرفُها. فالكبريتُ هوَ عنصرٌ موجودٌ في العديدِ منَ الجزيئاتِ البيولوجيةِ ويؤدي عدةَ أدوارٍ حاسمةٍ في الكائناتِ الحية؛ فالكبريتُ جزءٌ لا ...  Show more

الكيمياءُ مليئةٌ بالأسئلةِ التي لمْ يُجَبْ عنها. أحدُ الأسئلةِ الأولى التي طرحَها الناسُ منذُ العصورِ القديمةِ هوَ: ممَّ يتكونُ العالم؟أيْ أنَّنا إذا قمنا بتكبيرِ الجلدِ الموجودِ على طرفِ أصبعكَ بمقدارِ مليار مرة؛ فماذا سنرى؟ هلْ سيبدو ذلكَ مختلفًا عنْ تكبيرِ تفاحةٍ مثلاً؟ إذا قم ...  Show more

A couple of decades after Leo Baekeland invented the first fully synthetic plastic – Bakelite – plastics were pouring out of labs around the world. There was polystyrene, often used for packaging; nylon, popularised by stockings; polyethylene, the stuff of plastic bags. As the Se ...  Show more

Philip Ball tells the science story of German chemist Friedrich Wöhler’s creation of urea, an organic substance previously thought only to be produced by living creatures. Yet in 1828 Wöhler created urea from decidedly non-living substances. It was exciting because the accidental ...  Show more

Plastic is a part of so many of the things we use every day. But just what IS it? We asked University of Minnesota professor Frank Bates to help us find the answer. Got a question you’ve been bottling up? Send it to us at BrainsOn.org/contact, and we’ll pla-stic to the topic. See ...  Show more

#164

Something some common and useful in our everyday lives, from gloves to toy balls, what even is rubber? What makes it rubber, and what makes it different and unique from other substances? Also, where does it come from? Let's find out.

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