How to See in the Dark

Infrared waves

There is a way to see in the dark using infrared visioning, infrared waves are part of the EM spectrum (electromagnetic spectrum).The EM spectrum is the full spectrum of light not just the small portion that is visible.

In the electromagnetic spectrum the infrared the wave has a frequency range of .003-4*10^14 Hz and a wavelength range of 1mm-750nm. This particular wave is produced by the motion of atoms and molecules in an object. Infrared waves are all around us, they are radiation from sunlight, heat from fire, and animals. There also can be infrared waves that are not hot, they have a shorter wavelength, an example of these waves being utilized around us are in our television remote. Infrared waves are also used in military applications, firefighting, used by the police to find criminals on the run, and even for extermination purposes. An interesting phenomena related to infrared waves is that they move through the atmosphere without heating it until it hits an object. Infrared waves are typically harmless, unless the cops are after you and tracking you with infrared sensors.

Infrared waves have many practical uses today and they are also all around us, they help us feel the all the warmth of the world.

tags: infrared , applications , Em spectrum

Ever Wondered Why Animals Act So Strangly?

If I were a scientist I would be an ethologist. Ethology is the study of animal behaviors, animals have surprisingly complex rituals, behaviors, and interactions. These individual would do field work in studying the behaviors of various animals in various habitats. Wolves for example have a hierarchy where you have the alpha male and female of the pack and the others respect the alphas by nuzzling to show respect they also have a greeting called the soft muzzle bite.

http://www.gender.org.uk/about/a0_intro.htm

http://cas.bellarmine.edu/tietjen/Ethology/introduction_to_ethology.htm

The reason that this scientific field appeals to me is because animals intrigue me. I wish to learn why animals behave as they do. It is also a desire of mine to explore the wilderness as I study animal behaviors. Although if I was in this scientific field I may have to study animals in captivity. Even so I would still get to learn why animals behave as they do and also how habits and instincts are handed down through generations. I have a mind for psychology which makes my pattern of thinking good for the study of humans and animals and why they have certain behaviors. For the future this field still has a long way to go before we actually figure out the cause for all animal behaviors.

tags: ethology, animal behavior

http://www.aerospaceweb.org/question/atmosphere/q0291.shtml

http://quest.nasa.go/qna/questions/FAQ_Spacesuits.htm

Are humans bombs waiting to go off?

The question of would a person explode int eh vacuum of space was not in actuality created from historic events. Many believe this because it stems from sci fi movies where the character blows up because of the supposed decrease in pressure. This myth is extremely controversial because there are a multitude of perspectives on the subject. There are many who believe that your blood would boil due to the the decrease in pressure of one would quickly freeze due to the cold of a vacuum. This myth exists because it was thought that in a vacuum, due to the decreased pressure, one would explode because on a planets surface there are pressures inside the human body that counteract the pressures on the planets surface. Therefore, in a vacuum, one would explode. This was widely thought due to movies.

The basic veiws of those who dispute the myth are first those who believe due to the decrease in pressure, one would explode. Then there are those scientists that argue that one would not explode but in fact they would quickly die because their blood would boil due to the the decrease in pressure of that they would quickly freeze due to the cold. They last belie is that one's blood would neither boil or that they would freeze, these individuals believe that one would stay conscious for some short period of time in a vacuum then die because of the lack of oxygen.

the most credible of my sources says that in fact one would not explode in a vacuum , their blood would boil or they would freeze. This source was written and funded by nasa and for educational purposes, which is why it is the most credible source that i have to offer. My next credible source says that one would not explode in the vacuum of space but it also says that one 's blood would not boil and that one would not freeze, that an individual would stay concious for a small period of time such as a minute then they would die. No matter which of mky sourses you pick none of the information found supports the myth that na individual would explode in the vacuum of space.