| 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. |
| Infrared_Spectroscopy Includes information on the principles, absorption peaks for organic molecule functional groups and sample preparation methods, as part of the general program at Worcester Polytechnic Institute, Massa |
| Infrared_Spectroscopy_and_Greenhouse_Gases Introduction and overview, maintained at the Department of Chemistry, Widener University, Chester, Pennsylvania. |
| Infrared_Spectroscopy_of_Overtones_and_Combination_Bands [PDF] A paper on the analysis and mechanisms in these bands. |
| IR_Spectroscopy_Tutorial Contains an introduction to infrared spectroscopy as well as sample infrared spectra. |
| Micro-Raman_spectroscopy Overview of research applications in the field of art analysis and microbiological identification at laboratories Ghent University, based in Belgium. |
| NIR_Publications Resources, including books, bimonthly newsletter, and Journal of Near Infrared Spectroscopy offered in electronic, CD-ROM and hardcopy. Includes abstracts and a search facility, with full text availab |
| Infrared_and_Raman_Spectra_Interpretation_by_Group_Frequencies Five days of lectures in the field coupled with FT-IR laboratories and workshops at Stevenson Science Center, organized by the Fisk Inrared Institute in Nashville, TN. (May 12, 2003) |
| All_Headline_News__Technology Continuously updated headline links from several news sources. |
| Ananova_News__Technology Breaking tech news from around the world. |
| BBC_News__Technology News and features about the latest technology advances including e-commerce, digital media and gaming. Offers selected video and audio programmes. |
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto
Small Bodies
This is a collection of many of the best images from NASA's planetary exploration
program. The collection has been extracted from the interactive program "Welcome
to the Planets" which was distributed on the Planetary Data System Educational
CD-ROM Version 1.5 in December 1995. It has also been updated with the addition
of more recent images. Please note: This collection
replaces the former on-line version of Welcome to the Planets. Internal links
within this site are not identical to the old site, so please adjust any links to
this site accordingly.
When you see the NASA Photojournal button,
you may link to further information about the image, and a variety of image download
options.
Copyright 1995-2001, California Institute of Technology.
U.S. Government sponsorship acknowledged.
Welcome to the Planets is a trademark of the Jet Propulsion Laboratory
of the California Institute of Technology.
