Finding Out Why Penguins Huddle Up Aim: The aim of this experiment is to find out if when penguins "huddle up" it creates warmth for the penguins. Method: In this experiment I am going to use test tubes to symbolise penguins "huddling up". I will firstly get all of my equipment, then I will fill firstly one test tube with water, then 9, then 17, then 25 in bunches. I will fill them all with water at a temperature of 65 degrees C. I will leave each set for 5 minutes and record the
Throughout the world, farmers are turning to greenhouses to protect and improve their crops. Greenhouses are used by growers to extend the growing season and to protect plants from the elements. However, growers must closely regulate the climate of their greenhouses to support the plants that are inside. Understanding how a greenhouse functions is vital to choosing proper heat regulating techniques in a greenhouse. In order to understand how to regulate a greenhouse one must understand how a
smaller controlling factors. The global energy balance is an equal balance of short-wave radiation coming into the atmosphere and long-wave radiation going out of the atmosphere. This is called thermal equilibrium. The earth is at thermal equilibrium; however, there can have a surplus or deficit of energy in parts of the heat budget. If you have a net radiation surplus warm air will rise, and a net radiation deficit will make the air cool an fall. Air gets heated at the equator because of the
as an attached sunspace with an insulated commd on wall)” Sunspaces Sunspaces or Sunrooms which are similar to solar greenhouses work with the elements of direct gain and indirect gain system features. Sunlight entering the sunroom is kept in the thermal mass and air of the room. Sunlight is brought into the house by way of conduction through a shared mass wall in the rear of the sunroom, or by strategically placed vents that permit the air between the sunroom and living space to be exchanged by convection
Before we look at insulation we must see how thermal energy moves. There are three ways it moves. The first is by conduction. Conduction is the transfer of energy by direct contact of particles. Heat spreads through out an object till the object is the same all the way around. (Physical Science section 6.1, page 1) This happens because all particles vibrate unless in an absolute zero situation. These more violently moving particles hit each other. Eventually these particles will vibrate at the same
Fiberglass insulation is a type of thermal insulation. Thermal insulation materials are specifically designed to reduce the heat flow by limiting heat conduction, convection, radiation or all three while performing one or more of the following functions: The main function of insulation is to reduce the heat transfer, the insulation material must have the appropriate characteristic to slow down the transport of heat occurred by conduction, convection and radiation. We use Johns Manville fiberglass
Extended surface heat transfer accessory Data logging accessory 3. Theory The term extended surface is commonly used to depict an important special case involving heat transfer by conduction within a solid and heat transfer by convection (and/or radiation) from the boundaries of the solid. Extended surfaces are used to increase the surface area and to increase the total rate of heat transfer. A temperature gradient exist between two different temperature surfaces for heat transfer. The temperature
Aerogel is a synthetic porous ultra-light material derived from a gel, in which the liquid component of the gel has been replaced with a gas, resulting in a solid with extremely low density and low thermal conductivity. Nicknames include "frozen smoke", "solid smoke", "solid air" or "blue smoke" owing to its translucent quality and the way light scatters in the material. However, it feels like Styrofoam to the touch. Aerogels are solid, rigid, dry materials that do not resemble a gel in their physical
of heat loss: · Conduction · Convection · Radiation Conduction - This is where heat energy passes through the walls of the copper beaker by making the particles of the beaker vibrate which makes the particles next to them vibrate causing the heat to pass through the walls of the beaker to the surroundings. Materials that are good thermal conductors tend to be good electrical conductors; metals such as gold, silver and copper have high thermal conductivity's and will conduct heat well.
superficial knowledge about such things energy, heat, and radiation. For example, I thought that energy was simply the ability to work. However I learned that it is the capacity to do work (Kraushaar and Ristinen 8), generating heat, and emitting radiation (lecture 1/9/02). I also learned that the formula for energy is work = force x distance (1/9/02). Heat, we learned, is the ability to change the temperature or phase of a substance; radiation is energy emitted in the form of waves traveling at the
of bodies exchanging heat. * Convection This is the transport of heat in a fluid by the motion of the fluid itself. It occurs through the motion of a liquid or gas in contact with matter at a different temperature. * Radiation This is the transfer of infrared heat by waves with no particles of matter being involved. It does not require contact or the presence
Relationship between Material – Design – Retail From above we understand the meaning of material but the relation between Material and Design is like what a key do to the lock. Materials selection is a central aspect of design in many cases materials represent the supporting step. It involves seeking the best match between the design requirements and the materials attributes. Materials play significant role in design beside the functional attributes, even the emotional and aesthetic qualities also
Bottom ash (clinker) is produced from the furnace and is 90% of total ash produced by incinerators. Bottom ash contains significant concentrations of heavy metals, organic-halogens and other chemo-pollutants. Fly ash is the tiny particles which are trapped by controlling equipment. Fly ash is produced less than the bottom ash. It is correct that “the cleaner the air emissions, the more hazardous ash production”. Temporary storages of these ashes usually are open pits or gears without any protection
Investigating the Thermal Decomposition Of Metal Carbonates Aim: To investigate a range of metal carbonates and see if they thermally decompose. Thermal Decomposition INVESTIGATION [IMAGE] ------- Written By Tauqir Sharif ------------------------ Research: When a metal is thermally decomposed the bond between the metal and its carbonate (carbon and oxygen) is removed and the carbonate is released as carbon dioxide. Metal Carbonate = Metal Oxide + Carbon Dioxide
certain precautions are taken. Radiation Properties In order to understand the risks associated with nuclear energy, it is necessary to understand the properties of radiation and their effects. The term radiation refers to a wide range of things. Ionizing radiation is the kind that can and does cause damage. Ionizing radiation creates ions when it strikes something, which can then affect matter such as human tissue. The two main types of ionizing radiation are electromagnetic and particle.
Radiation in Cellular Phones Introduction: The use of cellular phones is an ever-increasing necessity. With this growing usage comes the customer concern of the safety of the product. You see, cellular telephones are known to emit low levels of radiofrequency energy in the microwave range when in use. This is the same type of radiation found in household microwaves. Even more significant, the cellular telephones emit the same type of low level radiofrequency (RF) while in standby mode
accurate in which ways they made the radiation affect people. First off, in "Hiroshima", which was a true story, not all the people died from the radiation, yes they got very ill from it. Such as fevers, vomiting, hair loss, white blood count going up and down, etc. But most of them died from all the wounds from the bomb. And the radiation didn't kill and poison all the things within the bomb as it did in "Z". "Hiroshima" had alot more telling about how the radiation effect the people physically than
I predict that the flask with the silvery surface will take longer to cool and overall there will be a smaller drop in temperature because the silver surface will reflect nearly all heat radiation back into the flask keeping the water warm whilst a dull black surface is a very good emitter of heat radiation so a lot of heat will be lost to the surroundings. Method ====== Apparatus --------- * Conical flasks ---------------- -One silver foil -One matt black * 2 Thermometers
californicus is found from Alaska to Baja in small, shallow tidepools and tidal flats in the upper spray zone where they cannot avoid the full effect of visible and ultraviolet (UV) radiation. Individuals assemble in areas of lower radiation at midday, yet have no preference to the intensity of light at dawn and dusk (Hartline and Macmillan 1995). These tiny arthropods inhabit all types of marine sediments from sand to fine mud and ooze. Along with plankton,
Exposure to ultraviolet radiation emitted by the sun in the UVA and UVB wavelengths is the primary cause. Australia has been a world leader in efforts to protect the ozone layer, the main line of defense against ultraviolet radiation emitted by the sun. Ultraviolet radiation induces the formation of thymine dimers that cause mutation of skin cells if not repaired before DNA replication. Mutations of tumor suppressor genes can lead to uncontrolled cell growth. Ultraviolet radiation also causes immunosuppresion