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The Chemical Behind Catnip’s Effect on Cats
Everyone knows cats go crazy for catnip. It’s an effect that’s been noted in scientific literature as far back as the 18th Century, when scientists observedthat cats seemed to be attracted to catnip when the plant was withered or bruised. Since then, research has managed to amass a little more ...
Lethal Doses of Water, Caffeine and Alcohol
Today’s graphic is a whimsical look at lethal doses of chemicalswe consume on a regular basis.Whilst it may be more common to view chemicals in a black and white framing of ‘toxic’ or ‘non-toxic’, the reality is more of a sliding scale of toxicity. The admission of too much of any chemical into ...
A Brief History of Chemical Shark Repellents
Shark Week Special
The human fear of sharks is an age old one. Even though your odds of being killed by a shark are estimated to be approximately 1 in 3.7 million, versus a 1 in 218 chance of simply dying from a fall, the fear persists, and over the years many chemists have turned their attentions to trying to find ...
Polyphenols & Antioxidants
The Chemistry of Tea
After looking at the chemistry of coffee in the previous post, it seemed only fair to also consider the chemistry of tea, just so all the tea drinkers out there don’t feel left out. Much like coffee, tea contains a hugely wide variety of chemical compounds, but some of the most important in terms ...
The Chemistry of Petrol & The Tetraethyl Lead Story
18th May marks the date of birth of Thomas Midgley, who made significant contributions to something many of us make use of on a regular basis: petrol. Midgley was the research assistant to Charles Kettering, and the duo were responsible for the addition of the compound tetraethyl lead to petrol, ...
A Guide to Simple Heterocycles in Organic Chemistry
We’ve already examined the functional groups that can be present in organic molecules in a previous post; here, we take a look one step further, at heterocycles. Heterocycles are hugely important in organic chemistry – they make up more than half of all known organic compounds.Caffeine is a ...
A Rough Guide to Types of Scientific Evidence
Today’s graphic looks at science in general, rather than just chemistry.It’s in a similar vein to the Rough Guide to Spotting Bad Science posted last year, but this time looking at the hierarchy of different types of scientific evidence. You might think science is science, but some evidence is ...
The Chemistry of Stain Removal
Stains on clothes can be a pain to shift – luckily chemistry is on hand to help out! A range of different molecules are present in stain removers and detergents to help shift grease and dirt, and they can work in different ways. This graphic takes a look at how we can categorise different types ...
Chlorination & Pee in the Pool
The Chemistry of Swimming Pools
Swimming pools are a brilliant way of cooling off during a hot summer. Of course, this isn’t a particularly original idea, and hundreds of people might use a particular pool every day. Chemistry is on hand to help prevent us from swimming in water that harbours potential water-borne infections. ...
The Chemistry Behind Your Home’s Water Supply
We take for granted the water that comes out of the taps in our home when we turn them on – but a lot of work goes into getting it there. Chemistry, too, has a hand in making sure that the water is safe to drink. Here, we take a look at the water treatment process, and in particular the chemicals ...
