| Venus Facts, early knowledge and history of man's exploration of Venus. |
| Venus_Basic_Information Summary articles and related links. |
| Venus__Earth\'s_troubled_sister Although it looks a lot like Earth, it's actually dramatically different. |
| Welcome_to_the_Planets__Venus Planetary profile and vital statistics, some pictures. |
| ACalendar_com The calendar has many options with a standard monthly interface, including sunrise, sunset, and Moon phases. |
| Annus_Novus_Decimal_Calendar A proposal for a non-sectarian, culturally neutral calendar system. |
| Astro_Portal_-_CalSKY The worldwide interactive online astronomical/space calendar and calculator - for friends of astronomy, as well as astronomers. |
| Astronomical_Time_Keeping Extensive descriptions of many astronomical time keeping systems, with information on time zones and Julian day numbers. |
| Astronomy_by_JavaScript__Sun_Calculators_and_More Applets related to calendars and keeping time, including sidererial time. |
| Astronomy_Calendar Features different views of the night sky, constellations, stars, planets, and other celestial wonders. |
| Blue_Moon_Myths Second full moon in a month, or third full moon in a single season? |
| Britannica_com_-_Clockworks__From_Sundials_to_the_Atomic_Second Britannica.com explores the history of timekeeping, from sundials to cesium atomic clocks. |
| The_Calendar,_Leap_Years_and_the_Year_2000 An explanation of the calendar including the origin of the day, week, month and year. |
| Calendar_Studies Articles on the Gregorian and Julian calendars, the ISO date format, the Julian day number system, the Maya calendar, the Goddess lunar calendar, the Liberalia Triday Calendar and C functions for date |
| Calendars_through_the_Ages History and FAQs of calendars, from ancient Rome to outer space. Including Julian, Gregorian, Jewish, Islamic, Chinese, and Mayan. |
| Calendopaedia The Encyclopaedia of Calendars. |
| Calendrical_Calculations Published by Cambridge University Press. Gives a unified algorithmic presentation of the Gregorian, ISO, Julian, Coptic, Ethiopic, and Islamic civil calendars. |
| The_Chinese_Calendar The mathematics of the Chinese calendar. Explains the rules for the Chinese calendar. |
| The_Difference_Between_the_Millennium_and_Year_2000 Questions and answers to satisfy the hearts of true millennium buffs. |
| Greenwich_Time__Home_of_World_Time_(GMT)_since_1884 Complete guide to times in every time zone in the world. |
| Hindu_Calendar_Dates_52nd_Century Explains the cosmological and astronomical influences in creating the Indian calendar. |
| Indian_Moons A list of many American Indian tribe's names for months, days, and other calendar related information. |
| The_Islamic_Calendar The mathematics of the Islamic calendar in Singapore. |
| The_Julian_and_Gregorian_Calendars Explanations of the Julian Calendar, the Gregorian Reform, the adoption of the Gregorian Calendar, the length of the tropical year and related matters. |
| Julian_Day_Numbers An explanation of the Julian day number system used by astronomers and calendricists. |
| Leap_Seconds Civil time is occasionally adjusted by one second increments called leap seconds. A detailed explanation of what a second actually is, and why leap seconds are necessary. |
| LunarCal_-_A_Perpetual_Chinese_Lunar_Calendar LunarCal is a 160-year perpetual Chinese Lunar Calendar for 1900 to 2060. Chinese festivals are listed and the moon phase is displayed. |
| Lunisolar_Calendar Lunar calendar with lunations, from new moon to new moon, instead of months. Moon phase on each day. Chinese, Jewish, and Islamic months. Eclipses, meteors, planets, star charts. Christian, Pagan, Isl |
| Maya_Calendar_2000 The calendar was the center of Maya life and their greatest cultural achievement. To carry out their astronomical calculations they developed a sophisticated mathematical system. The Maya Calendar web |
| Millennium_Mistake Explains the difference between millenium and year 2000 as the absence of a year zero. |
| Rosetta_Calendar An online handy tool for converting to and from the Gregorian, Julian and Jewish calendars. |
| Time_and_Date Lots of time and date related information, such as yearly and monthly calendars, counters, countdown, and the world clock which shows the current time in cities all over the world. |
| Time_and_Dates Information on date, time, and time zones from the New York Public Library. |
| Types_of_Calendars An explanation of lunar, solar, lunisolar, rule-based and other types of calendars. |
| World_Calendar/Clock,_Appointments,_Sun/Moon_positions,_Metric/Calendar_Conversion PlexGlobe is a productivity toolkit for global users and businesses that includes: - World clock and calendar such as Chinese and so on. |
| World_Holidays__Weeks_and_Months Information on the origin of the week, and etymology of month and weekday names. |
| ComSpec3D An online tool for calculation and visualisation of infrared and Raman spectroscopic results, with normal mode information. |
| CytoSpec_Inc_ Software for the analysis of infrared spectral maps including chemical mapping, cluster mapping, PCA and ANN imaging. Includes glossary, downloads and contacts in Croton-on-Hudson, NY. |
| Dr__Georgiou_Lab_of_Analytical_Chemistry Research into olive oil analysis, pesticides formulation analysis, flow injection, using analytical Raman spectroscopy and biosensors, at the Agricultural University of Athens, Greece. |
| Infrared_identification_of_Organic_Unknowns Includes a brief description of the theory, a step-by-step guide to peak assignment and some problems. |
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How many people does it take to run an x-ray microscope? Only one, but four of us posed for this picture. Left to right: Janos Kirz, Sue Wirick, Xiaodong Zhang, and Chris Jacobsen. Welcome to the x-ray optics and microscopy group at Stony Brook. We use coherent soft x-rays for optics experiments. The main fields we work in are Scanning Transmission X-ray Microscopy and Diffraction Microscopy Much of our effort is directed towards using Fresnel zone plates to produce one of the smallest focused spots of electromagnetic waves of any wavelength, and exploiting these nanofocused beams for studies of biological and environmental science specimens. Thanks to the Department of Energy, the National Institutes for Health, the National Science Foundation, and NASA for support! Home | Research | People | User | Data | Setting | Interna | top This page last modified on August 15, 2008 by HF 