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Why can’t you divide a certain number by zero?

Why can’t you divide a certain number by zero? Supposedly, the meaning of dividing by zero is that you do not divide the number (you “divide” it to 0 sets…) and so the result should be the same as the number divided?

calendar 9.5.2015
reading-time 2 minutes

How Does Blood Transport Major Food Groups?

השאלה המקורית: איך הדם מוביל את אבות המזון המצויים בו? האם הם מסתובבים בחופשיות? האם

calendar 15.3.2014
reading-time 5 minutes

What’s the Difference Between Saturated and Unsaturated Fat, and What Are Trans Fats?

In general, fats are organic molecules made up of two parts: glycerin and fatty acids.

calendar 23.2.2014
reading-time 4 minutes

What determines the solubility of a material?

Complete question: what are the conditions for solubility in water, and is CH3NHCH3

calendar 18.5.2012
reading-time 3 minutes

Why does soap easily remove fats from metalware and glassware but not from plastic? Tom

First of all – this is a correct observation, as this problem does indeed exist: washing

calendar 17.5.2012
reading-time 3 minutes

What stimulates sexual alertness in humans? Are these hormones? And why do men lose their sexual desire so quickly after experiencing an orgasm? Gilad

Several factors make the topic of your question a very broad issue. First, sexual

calendar 26.3.2012
reading-time 4 minutes

Can cold weather or cold body temperature really make one sick? Keren

Hi Keren, As you probably know, disease-causing agents (known as pathogens) are bacteria

calendar 25.3.2012
reading-time 2 minutes

What is capillary action and how is it affected by gravity? Ariel & Michal

Capillary action (or capillarity) describes the ability of a liquid to flow against

calendar 11.3.2012
reading-time 3 minutes

Do newborn babies have a blood-brain barrier? Shani

The circulatory system, of which blood is the central component, is the body's main

calendar 6.3.2012
reading-time 4 minutes

Why is August the hottest month of the year? Ofer

Question by Ofer: It is well known that August is the hottest month of the year in the

calendar 4.3.2012
reading-time 3 minutes

Why does my skin turn smooth after I touch household bleach? Orit

I don't understand why you touched bleach with your bare hands to begin with. When

calendar 3.3.2012
reading-time 4 minutes

What would happen to an astronaut who leaves his spacecraft with an oxygen bottle but not wearing his space suit?

In answering this question, most science fiction films depict gory scenes in which the human body resembles a balloon blowing up

calendar 25.2.2012
reading-time 3 minutes

Can a laser beam be used to stop an asteroid by producing an opposite momentum (velocity and mass)? Or

A laser beam is a ray of light with high intensity generated through the stimulated

calendar 23.2.2012
reading-time 4 minutes

Why does pumping water vapors out of a closed container sometimes lead to boiling? Ronen

When pumping out the vapors from a closed container half-filled with water at room

calendar 22.2.2012
reading-time 1 minutes

What are the requirements for a successful distillation? Ariel

I tried to demonstrate to my students how boiling temperature can be used for distilling

calendar 14.2.2012
reading-time 5 minutes

Why do ships float?

It all has to do with density (mass per unit of volume). Any material whose density is lower than that of water will float, and any material with a higher density will sink.

calendar 1.9.2009
reading-time 1 minutes