'Liquid water' diaporamas de présentation

The FEST Model for Testing the Importance of Hysteresis in Hydrology J. Philip O’Kane Department of Civil & Environmental Engineering, Environmental Research Institute UCC Int. Workshop on HYSTERESIS & MULTI-SCALE ASYMPTOTICS, University College Cork, Ireland, March 17-21, 2004 Content

Ice You can go skating on ice, and that can be fun. But what is ice? Ice is very, very cold water! Water is made up of tiny, tiny, tiny little water molecules. Water molecules are called H 2 0, which looks like this. Yay for H 2 0! Water can be liquid—we call this liquid water.

The Water Cycle Write On Grade 3-4 Learner Expectation Content Standard: 8.0 Atmospheric Cycles The student will investigate the relationships among atmospheric conditions, weather, and climate. Learning Expectations 8.3 Recognize the basic features of the water cycle.

Chapter 15. Water. Water Molecules. O is more electronegative than H Gives O a partial negative charge Bent shape makes molecule polar Strong hydrogen bonds Water molecules are attracted to one another better than other molecules its size. Surface Tension.

Searching for Extraterrestrial Civilizations The Drake Equation In 1961, Frank Drake synthesized an equation to estimate the number of civilizations currently communicating in our Galaxy. N civil = N *  f p  n p  f l  f i  f c  f L where

Lunar Lighthouse :. The First Small Step in Returning to the Moon Robert E. Strong strongro@westliberty.edu Elizabeth (Libby) A. Strong strongli@westliberty.edu Richard J. Pollack astronomy@smartcenter.org West Liberty State College SMART-Center &

“Water and Aqueous Systems”. “Aqua” Latin = water. Liquid Water and it’s Properties. OBJECTIVES: Describe the hydrogen bonding that occurs in water. Explain the high surface tension and low vapor pressure of water in terms of hydrogen bonding. The Water Molecule.

Conventional SEM. Specimen at high vacuum – requires sample fixation and dehydration or freezing. Charging is minimized by coating sample with metal or carbon or lowering the operating kV. Variable Pressure Scanning Electron Microscope. Variable Pressure Scanning Electron Microscope.

Ice Ages. Pleistocene 3 M.y. Permian 250-220 M.y. Ordovician 450 M.y. Precambrian 900-650 M.y. (Snowball Earth) 2300 M.y . . Take-Away Points. The recent period of ice advances since 2.5 million years ago is called the Pleistocene

Online at: http://www.umich.edu/~twod/energy/resources/greenhouse_lecture. Physical basis of the Greenhouse Effect -The “wavelength shift”-. Solar insolation calculation (doc file) Blackbody radiation, Absorption spectra Conservation of energy Energy & Environment 263.

Q) Which weighs more:- A kilogram of feathers or a kilogram of iron?. DENSITY. GEL2007. What is Density?. If you take the same volume of different substances, then they will weigh different amounts. Density is the Mass per unit Volume. Wood. Water. Iron. 1 cm 3. 1 cm 3. 1 cm 3. IRON.

Heat in the Earth. Volcanoes, magmatic intrusions, earthquakes, mountain building and metamorphism are all controlled by the generation and transfer of heat in the Earth.

Mountain climate. Mountain Geography, term A, 2007. Major climatic controls. ALTITUDE LATITUDE CONTINENTALITY TOPOGRAPHY. Climate factors/elements. Pressure, oxygen, water vapour Temperature Precipitation Winds Radiation clouds. 3. CONTINENTALITY. 4. TOPOGRAPHY. Barrier effects

Physical Properties of Water. Heat Energy and Water Density Structure of Seawater Optical (Light) Properties Sound in Seawater . Density & Temperature. Taking heat energy away →.

Atmospheric Stability. Adiabatic Processes The concept of a parcel Parcel and environmental lapse rates Atmospheric dry stability Determining stability. Air parcels. A parcel is a “blob” of air Small enough to have only one value of T, p, ρ, etc.

Chapter 15. Water. Water Molecules. O is more electronegative than H Gives O a partial negative charge Bent shape makes molecule polar Strong hydrogen bonds Water molecules are attracted to one another better than other molecules its size. Surface Tension.

METEO 466. Planetary Atmospheres. Reading for this week. Habitable Planet, Chapters 1-2 Chambers, EPSL (2004) Available from class website on Angel Grad students (ABIOL 574) only Tsiganis et al., Nature (2005) Gomes et al., Nature (2005) Walsh et al., Nature (2011). eight.

Mercury. SUN.  Mercury is the closest planet to the Sun and it is the eighth largest. It received it’s name because it moves so quickly across the sky.   The Sun is the largest object in the solar system. It contains more than 99.8% of the total mass of the solar system. Venus. Earth.

Chapter 7 Our Planetary System. Earth, as viewed by the Voyager spacecraft. 7.1 Studying the Solar System. Our goals for learning What does the solar system look like? What can we learn by comparing the planets to one another? What are the major features of the Sun and planets?.

Hadean plate tectonics – fact or fiction? Martin J.Whitehouse Swedish Museum of Natural History, Stockholm, Sweden. Penrose, June 2006. In the absence of Hadean rocks, what can we look at ? Planetary analogues, e.g. Mars, differentiated meteorites Post-Hadean rock record