Ice bucket challenge - Laila de Lima
Philippine's Secretary of Justice Leila De Lima reacts after she had a bucket of iced water dumped on her for the ALS ice bucket challenge during a break at the Department of Justice headquarters in Manila August 26, 2014. The Ice Bucket Challenge is aimed at raising awareness of - and money to fight - Amyotrophic Lateral Sclerosis, more often known as ALS or Lou Gehrig's Disease. Reuters

Since he is a chemist, he knew exactly what he was doing and hence did not suffer from immediate frostbites, BGR reported. Nitrogen, before it becomes a liquid, has a freezing point of -346°F that can create frost burns on the skin.

According to IFLScience, Leidenfrost Effect takes place when the temperature is so hot that it leads to the generation of a thin layer of vapor between the surface and the liquid. This causes the liquid to become insulates and slows down the process of evaporation. This could be the reason as to why Qureshi suffered no frost burns because his body temperature was very hot in comparison to the temperature of the liquid nitrogen. So it created a barrier that saved him from harm.

A report by Daily News shows that about 3 million people have made donations that are amounting to over $100 million. The challenge has gone viral and has gotten people all over the world interested in it.

This was an interesting way of raising funds for a disease that was not very well known before the challenge came up.

The challenge revolves around pouring a bucket of ice water over one's head in support of ALS, also known as Lou Gehrig's Disease. A person taking part in the challenge, nominates three others who either take the challenge or make a donation between $10 and $100. Some people prefer doing the challenge as well as make the donation on the basis of the demands that was put forth by the challenger.

The ALS Association wrote on its web site, "Amyotrophic lateral sclerosis (ALS), often referred to as Lou Gehrig's Disease", is a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Motor neurons reach from the brain to the spinal cord and from the spinal cord to the muscles throughout the body. The progressive degeneration of the motor neurons in ALS eventually leads to their death. When the motor neurons die, the ability of the brain to initiate and control muscle movement is lost. With voluntary muscle action progressively affected, patients in the later stages of the disease may become totally paralysed".