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.
With youngsters blaring Spotify on their headphones loud enough for the whole bus to hear, it is only natural for elders to advice you to keep your iPods turned down. Forget that for a minute and listen to this.
Little do we know that a simple and innocent kiss can do a far worse damage to your ears. It is something that sounds like fiction, more like an urban legend and seems like a story I understand, is tough to believe.In case you do not believe me, I have included references at the end of the article. It is weird, but I believe it is important for people to be informed about it.
Kissing on the ear, a kiss that involves suction, has the ability to create a negative pressure on your ear drum and can cause serious injury to it. It can cause intense pain due to the pulling of ossicular chain and due to the ear drum getting dislodged. The symptoms may vary anything from a constant ringing sound, hearing loss to certain kind of sounds, distortion or even complete hearing loss.
Scientists from Yale have been able to image HIV infecting a mice in real time by using florescent markers on the virus. A special technique called the two photon laser scanning microscopy to image what was happening under the skin was used. The virus appears in green colour and helps them understand how it spreads.