Information Technology Associates
Cia World Factbook: Slovakia Geography 2008
General geographic information on Slovakia, including natural resources and environmental issues.
US Geological Survey
Usgs: Effects of Human Activities
This site reviews the effects of agricultural development, urban and industrial development, drainage of the land surface, modifications to river valleys, and modifications to the atmosphere have on ground water and surface water.
US National Library of Medicine
Medline Plus: Gas Exchange
From MedlinePlus, a video tutorial featuring information on the gas-exchange process with accompanying text.
American Geosciences Institute
American Geosciences Institute: Cold Front and Warm Front
Read and understand the differences between a cold and a warm front.
Libre Text
Libre Text: Wind Stress
The force exerted by the wind on the ocean surface gives rise to a vertical velocity gradient in the upper boundary layer of the ocean. Essentially, the wind adds momentum to the ocean surface which is then transported downward through...
MadSci Network
How Come When You Open a Window the Door Is Pulled In?
From the Mad Scientist Network. Using a question and answer format, this page explains the answer to the question "How come when you open a window the door is pulled in?" This intriguing everyday phenomenon is explained in terms of air...
Other
Gulf War Debriefing Book
Site provides information on the players, the military systems, a summary of the war, a timeline, and more.
Geography 4 kids
Geography4 kids.com: Atmospheric Circulation
Check out how air circulates around us. Understand the differences between mesoscale and microscale.
Geographic
Hong Kong: Military
Get the basic facts about Hong Kong's military attributes, which is presently the Hong Kong garrison of China's People's Liberation Army (PLA), including elements of the PLA Ground Forces, PLA Navy, and PLA Air Force.
Other
Warmair.com: Heat Gain
An excellent page describing the variables lead to rising temperatures in the home. The causes and sources of such heat gain are identified and explained. Lays the groundwork for understanding the importance of and need for home air...
Other
Engine Science: Induction Basics
This page discusses the things involved with the fuel mixing in with air to produce a power output. Also include a picture of the intake system.
Science Bob Pflugfelder
Science Bob: Make Your Own Balloon Rocket!
This site contains a brief procedure for building (and launching) a balloon powered rocket. Introduces concepts of air pressure and propulsion.
American Geosciences Institute
American Geosciences Institute: What Is Atmospheric Pressure?
See how atmospheric pressure affects air masses, which in turn affects the weather on Earth.
Weather Wiz Kids
Weather Wiz Kids: Wind
Wind is air in motion. It is produced by the uneven heating of the earth's surface by the sun. Since the earth's surface is made of various land and water formations, it absorbs the sun's radiation unevenly. Two factors are necessary to...
Curated OER
Warm Air: Central Air Conditioning
The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.
Curated OER
Warm Air: Solar Heating
Solar heating systems and their operation are described, and their benefits, both economic and environmental are discussed in detail.