Most science experiments performed, from elementary to high school students and all the way up to professional scientists, are investigatory projects. An investigatory project is basically any science experiment where you start with an issue or problem and conduct research or an investigation to decide what you think the outcome will be. For those of us who have forgotten the various steps of the scientific method, let me clear that up right here: In order to conduct a great investigatory experiment, you have to ask an interesting question and be able to conduct an experiment that can hopefully answer that question.
Anoxia will hit the crew when the atmospheric pressure drops to what pressure? From Living In Space by G. Artwork by Rick Sternbach. Low pressure is attractive; since it uses less mass and the atmosphere will escape more slowly through a meteor hole. Unfortunately the required higher oxygen level make living in such an environment as hazardous as chain-smoking inside a napalm factory.
NASA found that out the hard way in the Apollo 1 tragedy. Since then NASA always uses high pressure, they use low pressure in space suits only because they cannot avoid it.
This does raise a new problem. There is a chance that the high-oxygen atmosphere will allow a meteor to ignite a fire inside the suit. There isn't a lot of research on this, but NASA seems to think that the main hazard is a fire enlarging the diameter of the breach, not an astronaut-shaped ball of flame.
There are other problems as well, the impossibility of air-cooling electronic components and the risk of long-term health problems being two. Setting up the optimal breathable atmosphere is complicated. A more annoying than serious problem with low pressure atmospheres is the fact that they preclude hot beverages and soups.
It is impossible to heat water to a temperature higher than the local boiling point. And the lower the pressure, the lower the boiling point. You may have seen references to this in the directions on certain packaged foods, the "high altitude" directions.
The temperature can be increased if one uses a pressure cooker, but safety inspectors might ask if it is worth having a potentially explosive device onboard a spacecraft just so you can have hot coffee.
Human-breathable mixtures of oxygen and nitrogen as a function of barometric pressure the blue area. Below inspired partical pressure pO2 60 mm Hg you suffer hypoxiaabove pO2 mm Hg you suffer oxygen toxicityabove pN2 mm Hg nitrogen narcosis From Habitable Planets for Manmodifed by me.
The Bends prebreathing Decompression sickness also known as DCS, divers' disease, the bends or caisson disease is one of the more hideous dangers of living in space. It occurs when a person has been breathing an atmosphere containing inert gases generally nitrogen or helium and they move into an environment with lower pressure.
This is commonly when they put on a soft space suit or the room suffers an explosive decompression. It has all sorts of nasty effects, ranging from joint pain and rashes to paralysis and death.
The large joints can suffer deep pain from mild to excruciating. The brain can have sudden mood or behavior changes, confusion, memory loss, hallucinations, seizures, and unconsciousness.
The legs can become paralyzed. Headache, fatigue, malaise, loss of balance, vertigo, dizziness, nausea, vomiting, hearing loss, shortness of breath, and urinary or fecal incontinence: Why does it happen?
Well, imagine a can of your favorite carbonated soda beverage. Shake it up, and nothing happens. But when you open it, the soda explodes into foam and sprays everywhere. When you open the container of shaken soda, you lower the pressure on the soda fluid. This allows all the dissolved carbon dioxide in the soda to un-dissolve, creating zillions of carbon dioxide bubbles, forming a foam.
Now imagine that the carbon dioxide is nitrogen, the drink is the poor astronaut's blood in their circulatory system, and the foam is the deadly arterial gas embolisms.
That's what causes the bends.INVESTIGATORY PROJECT REPORT Gumamela Extract as Perfume St. Alphonsus Catholic School SY In this study, we intend to make homemade gumamela perfume.
These days, prices of goods have been constantly increasing, and one of these goods is perfume. Making perfume from Gumamela is a popular science project for children due to reasonably easy process that is involved.
Before you begin making Gumamela perfume you will need to make sure that you have the correct ingredients and equipment.
How To Make Perfume As An Investigatory Project. How To Make An Investigatory Project Sample Format: # Abstract After finishing the research and experimentation, you are required to write a (maximum) word, one-page abstract.
An abstract includes the a) purpose of the experiment, b) procedures used, c) data and d) conclusions. is and in to a was not you i of it the be he his but for are this that by on at they with which she or from had we will have an what been one if would who has her.
Make it an investigatory project by changing up the recipe and testing which results in the strongest glue. You could also try varying the ingredients to make it dry faster, or work on different materials (wood vs.
INVESTIGATORY PROJECT. Flower bloom perfume Submitted by: timberdesignmag.com Briones Frances Blanco Ingrid Borja Krystyn Cortez 1 or even nature? What are the explicit effects we are not knowledgeable about? Solution: By this Investigation of what harmful substances they put in cosmetics we can have the right choices of being healthy.5/5(1). INVESTIGATORY PROJECT REPORT Gumamela Extract as Perfume St. Alphonsus Catholic School SY In this study, we intend to make homemade gumamela perfume. These days, prices of goods have been constantly increasing, and one of these goods is perfume. Investigatory Project In Chemistry (Rose Petal Perfume) Prepared by: Jhannine Mae Talain Eileen Shelly Velasquez timberdesignmag.come January 13, Prepared for: Mrs. Geraldine M. Yadao I-Introduction We thought and brainstormed about what we are going to do for our investigatory project. More about Sample of Chapter 2 of an Investigatory.
paper). Investigatory Project In Chemistry (Rose Petal Perfume) Prepared by: Jhannine Mae Talain Eileen Shelly Velasquez timberdesignmag.come January 13, Prepared for: Mrs. Geraldine M. Yadao I-Introduction We thought and brainstormed about what we are going to do for our investigatory project.