Early Development of The Hypodermic Needle And Syringe

An early history of the hypodermic needle. Including Wren's early experiments.

How to Solve a Physical Science Problem

Do you struggle with the mathematical problem-solving side of your course? Take a step back for a minute, see what all those problems have in common and learn how to think when you approach them.

Traveling Faster than the Speed of Light Requires Some Tricks of Physics

If we had a 4D Galaxy Positioning System and could figure out our ever changing co-ordinance then all we would really have to do is stay put while everything else moved using an energy ball or energy blast. Once we had a shield around us keeping safe from harm we could then turn it off when we were on top of the location we wished to be at.

Can We Save Astronauts from Space Radiation

One of the biggest hurdles to travel in space will be preventing space radiation from killing our astronauts. Long-term space flight may be impossible because it might take many generations. If so, the space radiation will prevent the reproductive functions on the human body from working and therefore the spaceflight can not be longer than one human generation.

Wind Energy - Can There Be Too Much Of A Good Thing?

Wind energy has grown significantly over the past 1.5 decades in 4 countries (Denmark, Germany, Spain US), primarily with policy support. The technology is now becoming competitive in certain regions. But intermittency, siting and distance to load limit its potential.

Chinese Symbols and Mathematical Genius - Are They Connected?

Students in China who learn Chinese have to memorize 40,000 symbols or characters in the Chinese language before there are 14 years old. This takes a tremendous amount of studying and personal effort. Many students in the United States did not like math because they have to memorize symbols and that confuses them.

Lunar Watching Software Opens the Skies

Did you know that primarily due to the impact of gravity and its accompanying centrifugal forces, there is a yearly increase in the physical distance between the earth and the moon ? You can join professional astronomers and watch the moon from the comfort of home today.

Ion Chromatography vs Flow Chemistry for the Analysis of Anions, Nutrients, and Trace Elements

Analysis of nutrients in wastewater samples has traditionally been done by wet chemical methods such as segmented flow analysis (SFA) or flow injection analysis (FIA). Ion Chromatography (IC) has recently been approved for wastewater.

Simple Things To Do During Heat Wave

There are lots of things or actions we could do during heat wave. If it happens, better be safe.One of the important thing is to keep calm. Being calm will keep you active and take decisions wisely. This will not create anymore problem unlike you will try to do some strenuous activity. Another thing you could do is stay indoor most of the time. This at least will not directly heat your body with some hazards and heat caused by heat wave. Keeping your body cool at the times is a good way.

Easy Science Project For Elementary School Student

Children of all ages can do science projects. You can make science fun and give them success by choosing a science project in which they can easily success and see the results themselves and understand.

Shark pictures - CSI Style!

They say that a picture is worth a thousand words but what about shark pictures - CSI Style? What I mean by CSI Style, is when pictures are not always clear but still give important clues to help identify the type of shark that was photographed. Let's read more about it!

Earth's Dark Matter Halo

Galaxies have gigantic halos composed of dark matter. Considering the trillions of dark matter particles that pass through the Earth constantly and the clouds of dark matter in our vicinity, the question arises- Is Earth sitting inside a dark matter halo? If so, we would be living inside this halo.

Geologic History of Denali National Park

Denali national Park lies in the heart of a curved mountain chain about 600 miles long, the Alaska Range. The centerpiece of these high mountains is Denali, the highest peak in North America, at 20,320 feet. About 60 million years ago during the Paleocene epoch, semi-liquid magma intruded into the crust of the earth.

Elephants - A Few Interesting Details

Elephants are the largest of land mammals. They are regal creatures used throughout the world as images of stateliness and ceremony. They are, in general, private, gentle and herd-like creatures. They are in danger in some areas because of illegal ivory trade killings. Its long trunk, huge head with large flat ears and columnar legs characterize this gigantic creature.