Science should even be cool for girls. A lot of girls shy away from science without realizing that chemistry and technology is the basis for many of the products they use on a daily basis – like lip gloss, cosmetics, cell phones and texting. A good science kit can help girls (and boys) realize that a lot of the day to day products they take for granted were created by scientists.

If you’re looking to get your daughter interested in science, consider some of the science in box products by the Scientific Explorer. These kits are developed in cooperation with notable universities and scientists around the country and provide clear and easy instructions on how to use them – plus an explanation of the science behind them.

The solution to a mathematical equation can be feasible or infeasible. There can be mathematical models with boundaries as well. Such models are termed as optimization models where the solution resides within a set of values. Usually such models are expressed with a set of constraints. For example, the classical functions of pricing the supply and demand for products, both these functions together create a fixed value for the price.

Here is a sample mathematical model

Objective: Maximize Profits from selling two products P1 and P2 at Price $3 and $4 respectively.

Constraint: Labor hours are limited to 40 per week. Product 1 takes 2 hours to produce and product 2 takes 3 hours to produce. (Per unit)

Maximize 3P1 + 4P2 — (1)

SUBJECT TO

2P1 + 3P2 < 40 — (2)

Hal Anger, a nuclear scientist, was the man who invented the gamma camera. Is a medical device, a camera, that is used to look at the internal organs and how they are functioning at the time. He invented it back in the 1950’s and it is still around today, nearly 70 years later.

The gamma camera works by through gamma rays. The patient is given a solution to drink or injected with a solution that contains a low level of radiation that will emit gamma rays. Depending on the organ that is being target to be looked at, a different type of solution is given. The reason for this is because certain types and mixes of the solution will be absorbed by different organs.

When an element is analyzed for its elemental properties it is known as Elemental Analysis. This is a process which uses a sample of material, and this sample is analyzed for its elemental and quite often its isotopic composition.

By using this process, the elements which are present can be determined; this is known as ‘qualitive’, and the process can also determine how much of each element is present and this is known as ‘quantitive’.

This is a part of analytical chemistry, and this means the set of instruments involved in deciphering the worlds chemical nature.

Organic chemists use elemental analysis, and for them this generally refers to CHNX analysis. CHNX analysis refers to determination of the percentage weights of;

• Hydrogen
• Carbon
• Halogens
• Nitrogen
• Heteroatoms

This type of information is very important and helps to determine the structures of compounds, and also to find out the purity and structure of a synthesized compound.