Here’s the quick and hard truth – Mountain Dew is worse for your teeth when compared to Coca Cola. As interpreted by a young scientist, from a simple yet sharp experiment he conducted, there are two main reasons why Mountain Dew is worse thank Coke.
Firstly, Mountain Dew uses citric acid, while Coke uses phosphoric acid to give them their tangy zing. So, since citric acid is an organic acid, it can breakdown organic matter more easily than the inorganic acid used in coke. This is due to the buffering capacity of citric acid (and similar low molecular weight organic acids).
Secondly, even though as a whole Coke has a lower pH of 2.5 as compared to that of Mountain Dew (pH 3.1), which means Coke is six times more acidic owing to the logarithmic nature of this measurement, there’s more to it than just that.
pH measures the strength of the acid in a solution. pH does change due to dilution, but it needs massive dilution to change the pH.
Thus it is more appropriate here to measure the amount of acid actually present in the drink. Which can be done by measuring the Titratable Acidity (TA). TA is the amount of acid molecules present (both protonated and unprotonated) in milligrams or grams per liter of solution available for interaction with the tooth surface.
Continue reading Mountain Dew vs. Coke – Which One is Worse
It makes great sense to us today that we, or for that matter, so many other living beings around us, have eyes that are made up of organic matter. I’m specifically talking about the lenses of our eyes which are made up of organic material like crystallin. These are squishy, jelly-like biological materials which can change shape as muscles pull them and can focus on objects at different distances. Totally makes sense. But these won’t last long.
Imagine getting extinct, organisms finding our fossils a million years later wouldn’t have the slightest idea of how exactly our eye lenses worked.
Eyes of stone
Whereas the earliest creatures which started seeing, about 400 million years ago, had eyes literally made of stone. Their eyes, unlike any of our eyes would ever be able to do, have been preserved in the fossils we uncover today. [NCBI]
Some of the earliest Arthropods that we know of, belonging to a fossil group called Trilobites had eye lenses that were made up of this transparent mineral Calcite (Calcium carbonate). The closest existing relative of these creatures today are the blue blooded Horseshoe crabs.
The kinds of eyes
Broadly, they were of two types.
Continue reading Trilobite Eyes: Calcite Eyes Last Forever
That someone out there would point out, you do not know something, something which is widely popular and somehow you missed it, is a great social fear we live by today.
The fear of missing out on something, snubs some part of you that prevents you from coming out honestly and laying your guts out in the open. There simply is only a negative social incentive for you to be honest about your unawareness, because of the fear.
Like try telling someone that you have never heard of this thing called GoT everyone is talking about. Or Pokemon Go, or the Apple’s latest iPhone model. “Do you live under a rock?,” they will say.
Trust me, there for sure is someone out there who has never heard of it.
Continue reading On Not Knowing