History Main article: History of swimming The sport of swimming has been recorded since prehistoric times; the earliest recording of swimming dates back to Stone Age paintings from around 7‚000 years ago. Written references date from 2000 BC. Some of the earliest references to swimming include the Gilgamesh‚ the Iliad‚ the Odyssey‚ the Bible‚ Beowulf‚ Quran and other sagas. In 1778‚ Nikolaus Wynmann‚ a German professor of languages‚ wrote the first swimming book‚ The Swimmer or A Dialogue on
Premium Summer Olympic Games Swimming Olympic Games
same pipette and burette throughout the experiment. Apparatus: * Burette * Weighing Bottle * Cylinder * Flasks Chemicals Needed: * Hcl * Phenolphthalein * Sodium Hydroxide Safety equipment: * Lab Coat * Safety goggles * Lab gloves Fig 2: Titration of an acid to a base by using phenolphthalein as the indicator. Proceudre: * Add 100 Ml of distilled water into a bottle * Measure the approximate value of the Hcl using the Cylinder * Gradually
Premium Paracetamol Ibuprofen Sodium hydroxide
Concentration of plant solution Volume of plant solution Safety Precautions No food or drink was to be consumed during the experiment as we were using living bacteria which could harm our health. When using the methylated spirits eye goggles were worn to prevent it from splashing into our eyes. Lab coats were worn throughout the experiment to protect our clothes from methylated spirits. Contamination To avoid contamination during this experiment I used the following aseptic techniques:
Premium Antiseptic Perennial plant Aseptic technique
the participants for 2 seconds each in random sequence with temporal jittering to increase statistical efficiency. Student either were chose to imitate or just observe the faces presented to the through the use of magnet-compatible‚ high resolution goggles. Each participant observed 96 images which were practiced looking at normally (check in they can comply) and then through a head-only scanner. No group difference was shown in the length of time is needed to fixate on the faces and eye region or on
Premium Brain Neuroscience Autism
must have read and signed the appropriate risk assessment if the work or equipment they are using has been risk assessed. 5. Personal Protective Equipment is provided and must be used where necessary. Barrier cream‚ lab. coats‚ safety glasses/goggles and safety shoes are to be used as the work dictates. When working with machine tools or other equipment with rotating spindles‚ jewellery‚ loose clothes etc. are prohibited and long hair must be completely covered. 6. No hazardous substance
Premium Occupational safety and health Tool Personal protective equipment
Period:______ Page:_______ Potato Diffusion Lab Hypothesis:________________________________________________________________________ __________________________________________________________________________________ Materials Aprons/Goggles Potato Slice (2-3cm thick) Potato Borer Triple beam balance 6 x 100mL beakers plastic wrap Paper towel 50mL Distilled Water 50mL 0.2M Sucrose solution 50mL 0.4M Sucrose solution 50mL 0.6M Sucrose solution 50mL 0.8M Sucrose solution 50mL
Premium Water Seawater Osmosis
What is the experiment about? The experiment is about finding the time it takes for a solution of neutrase and milk to clear when using different concentrations of neutrase. Why did I choose to experiment on how the concentration of neutrase effects the time a milk solution takes to clear? I could have chosen to test how the reaction times differed at different temperatures‚ but I chose to experiment on the effect different concentrations of enzymes. The reason I did this was because I felt that
Premium Concentration Chemistry Solution
Computer Concepts Virtual Reality 8/1/2012 Submitted to: Sir Mujtaba Memon Group Members: Zainab Imtiaz (11915) Komal Shamim (12788) Zara Iqbal (11335) Halima Muhammad Hussain (13670) Contents Letter of Transmittal 3 Introduction 4 Definition of Virtual Reality 4 Advantages of Virtual Reality: 4 Disadvantages of Virtual Reality 6 Types of Virtual World 7 Virtual Entertainment: 7
Premium Virtual learning environment Virtual reality Distance education
Introduction In this chemical reaction‚ the magnesium will dissolve in the hydrochloric acid to produce hydrogen gas. This is because magnesium is higher than hydrogen in the reactivity series. Therefore‚ when the two reactants are combined‚ a displacement reaction occus and the magnesium displaces the hydrogen‚ forming magnesium chloride and hydrogen gas. Mg (s) + 2HCl (aq) -> MgCl 2 (aq) + H 2 (g) Magnesium + Hydrochloric acid -> Magnesium Chloride + Hydrogen
Premium Chemical reaction Hydrogen Chlorine
sensitive items alone‚ or if you have to‚ have someone in your platoon or team guard them. Always get your stuff back when you are done so you can have accountability. Your sensitive items include alot of things including your weapon‚ night vision goggles‚ spare barrels‚ and anything you will need to correctly perform your job right. Spare barrels are very important to me because I am a SAW gunner and depending on what rate of fire I am shooting at‚ I would need to change out my barrels from either
Premium Infantry Tool