Wonders of our universe
By: Roberto Chiodetti
Wonders of the universe One of the first things that filled the imagination of early humans was the sky, they would look up at night and see countless flickering light and watch in amazement asking what they were and why they were up there...
What is matter?
By: Nancy Seddens
Matter: any substance which has mass and occupies space. It would seem that all physical objects would be matter and logically that the only things that could not be matter would be imaginary or intangible things. While that seems like a straight forward and uncomplicated...
The issues around nuclear power
By: Khoa Nguyen - 551387
Nuclear energy is like a duel edged sword; on one end, it can produce massive amounts of electricity for pennies on the dollar to power entire cities, and on the other hand, it leaves behind dangerous waste that can last for thousands of years. This...
By: Alison Bowler
The element oxygen is vital to life. Even the anaerobic bacteria to which atmospheric oxygen is poisonous require water and oxygen forms 90% of the mass of water. It is the third most common element in the universe forming approximately 21% of Earth's atmosphere by...
By: Suzanne Rose
Many teens find astronomy to be a fascinating subject. There are many great astronomy-related gifts that you can get for your teen. The following are just a few of the presents he or she may love. A trip to Spacecamp - Located in Huntsville, Alabama...
By: Alison Bowler
Of all the 118 elements in the periodic table, many are solids at room temperature. While a number are gases, are only two elements are liquid at room temperature. These two are mercury and bromine. Mercury with a melting point of minus 38.83 C...
What was shown by Rutherford's gold foil experiment?
By: Helena Whyte
Ernest Rutherford's 1911 gold foil experiment showed that the positive charge and most of the mass of an atom was found in the center of the atom. He called this center of the atom the nucleus. Most of the alpha particles passed through the empty...
The components of an atom
By: Jamie Craig
Understanding Atomic Structure Atomic structure is actually remarkably simple to understand; despite the fact a definite atomic structure hadn't being cemented until the early 19th century. There are three main components to the atom: electrons, neutrons and protons. All three are summarised below. >>...
Noteworthy features of the solar system
By: Roberto Chiodetti
Let's imagine another life form entering this star system, what features would be considered good enough to talk about once he's back home at a barbecue under five shining moons in his star system? Well let's see where to start? How about starting from...
What was shown by Rutherford's gold foil experiment?
By: Nancy Seddens
Ernest Rutherford's gold foil experiment proved that most of the interior of an atom is comprised of empty space with most of the mass concentrated in a small dense nucleus. The experiment itself also referred to as the Geiger-Marsden experiment or the Rutherford experiment...

 

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