Purify Sulfuric Acid by Distillation

Purify Sulfuric Acid by Distillation

Warning this experiment handles boiling sulfuric acid. This must be performed with gloves, outside or in a fume hood. Greetings fellow nerds. In this video we’re going to purify sulfuric acid by distillation using the heating mantle we built in a previous video. Now sulfuric …

The Man Who Tried to Give Himself An Ulcer… For Science

The Man Who Tried to Give Himself An Ulcer… For Science

Here at SciShow, we don’t like to indulge the idea of the ‘mad scientist.’ But sometimes scientists do live up to the stereotype, and resort to doing things most of us would never do. Like experimenting on themselves to prove a point. In 1984, an …

What causes Diarrhea? | #aumsum

What causes Diarrhea? | #aumsum

It’s AumSum Time. What causes diarrhea? Intense love for restrooms. Hahaha. Diarrhea is a condition in which we frequently pass loose, watery stools. Let’s see some causes of diarrhea. Firstly, during digestion bile acid produced by the liver. Is absorbed by the small intestine. However, …

Asthma, Animation.

Asthma, Animation.

Asthma is a chronic respiratory condition where the airways in the lungs are inflamed and narrowed causing breathlessness, wheezing, chest tightness and coughing. Symptoms come as recurrent episodes known as asthmatic attacks most commonly at night or early in the morning. Asthma is usually diagnosed …

Hand vs. Liquid Nitrogen and the Leidenfrost Effect

Hand vs. Liquid Nitrogen and the Leidenfrost Effect

Greetings fellow nerds. In this video I’m going to put liquid nitrogen on my hand. I’m not crazy. To show you why I’m not crazy I’m going to first show something called the Leidenfrost effect. I have here a standard laboratory heater plate and I’m …

Anti-Reflux Laparoscopy Surgery PreOp® Patient Education Medical video

Anti-Reflux Laparoscopy Surgery PreOp® Patient Education Medical video

Your doctor has recommended that you undergo surgery to treat reflux disease. But what does that actually mean? Your diaphragm is a muscle that separates your chest from your abdomen and helps you to breathe. Normally, the diaphragm has an opening for the esophagus to …

Lab Equipment: Soxhlet Extractor (Fixed)

Lab Equipment: Soxhlet Extractor (Fixed)

Greetings fellow nerds. In this video we’re going to examine a specialized piece of lab equipment called a Soxhlet extractor. Now first let’s consider a common lab issue. You have a mixture of chemicals that you want to separate. The answer is usually to find …

Is It Bad To Chew Ice?

Is It Bad To Chew Ice?

“This episode of DNews is brought to you by…the BuyPower Card from Capital One.Every purchase brings you closer to a new Chevrolet, Buick, GMC or Cadillac vehicle.” I love chewing ice. What does that say about me?! AM I GOING TO BE OKAY?! Hey guys, …

Make Chlorotoluene (mixture of isomers) 1st step in making Pyrimethamine

Make Chlorotoluene (mixture of isomers) 1st step in making Pyrimethamine

This video is also posted to popchest for those of you that wish to donate with bitcoin. The links are in the video description. Otherwise this video can still be viewed for free right about now. Warning: This experiment uses toxic chlorine gas. This must …

What Causes Morning Sickness?

What Causes Morning Sickness?

[Intro] Morning sickness, also known as nausea gravidarum, is that nauseous, fatigued feeling that has been ruining days of pregnant women for all time. The term “morning sickness” is kind of a cruel joke, since, if you’ve ever been around a pregnant lady or been …