Science - Natural & Social

• Astronomy [sa]
• Biology [sb]
  • Birds [sbb]
  • Medicine [sbm]
  • Stream (see also Mapping & GIS and Stream Study Links) [sbs]
  • Taxonomy [sbt]
• Chemistry [sc]
• Geology [sg]
  • Earthquakes [sge]
  • Volcanoes [sgv]
• History [sh]
  • European History [she]
• Mapping & GIS (see also Maps) [si]
  • GIS [sig]
    • Data [sigd]
    • Software [sigs]
  • Photos [sip]
    • Aerial Photos [sipa]
    • Maps [sipm]
    • Satellite Photos [sips]
• Geography [sj]
• Math [sm]
  • Math Competitions [smc]
• Meteorology [sn]
• Physics [sp]
  • Model Bridges [spb]
• Psychology [sq]

• Britannica Online
• Bad Science
• The Nobel Foundation
• GNN Science and Technology
• Science Sources: GNN
• GNN Social Sciences
• National Institute for Global Environmental Change
• EINET Engineering and Technology
• EINET Science
• EINET Social Sciences
• International Organization for Standardization
• The Junk Science Home Page
• Penn Library-Electronic Journals
• Nature - International weekly journal of science
• The Nobel Foundation
• The New York Times - Science
• The Ig Nobel Prizes
• USGS - Science on the Internet

Astronomy

• The Nine Planets - Great!
• Bad Astronomy
• Astronomy & Astrophysics on the Web
• AstroNET
• National Solar Observatory
• Views of the Solar System: Mars
• IAU Central Bureau for Astronomical Telegrams
• New England Light Pollution Advisory Group (NELPAG)
• Comet Information and the International Comet Quarterly (ICQ)
• Information on Comet Hale-Bopp for the Non-Astronomer
• Comet Observation Home Page
• Comets Currently Visible
• Mars Pathfinder - Welcome to Mars!
• Mars Pathfinder - Mars - Other Images
• Saturn Ring Plane Crossings of 1995-1996 (JPL)
• Welcome to the Planets: Mars
• SXT home page
• SEDS (Students for the Exploration and Development of Space)
• The Nine Planets
• The Aurora Page
• NASA Photo Gallery
• Pathfinder Communications Problem Is Overcome
• The Nine Planets: Mars
• SpaceViews: Mars Pathfinder: Links
• Annular Solar Eclipse May 10, 1994 (Works?????)
• Space Environment Laboratory Index Page
• Astronomical pictures & animations

Biology

• DNA Patent Database
• Nanoworld - CMM Image Gallery

Birds

• BirdSource New Version
• Tree of Life - Neornithes (Modern Birds)
• Bird Song Mnemonics
• Birdlinks

Medicine

• Visible Human Slice Server
• The Visible Human Project
• Outbreak - formerly the Ebola Virus Page. This site has information on many disease outbreaks, including new strains of antibiotic-resistant bacteria
• Tobacco Control Archives
• GNN Medicine
• eBMJ, British Medical Journal home page
• Dr. Koop's Community
• EINET Medicine
• National Health Study of Nutrition
• Images and Animations from the Visible Human Project

Stream (see also Mapping & GIS and Stream Study Links)

• PA DEP County Information On the Internet . . . . . .
• Bucks County Watershed Maps and Descriptions
• Untitled
• SECTION 303(d) LIST OF WATERS
• PA DEP - Bureau of Watershed Conservation - Watershed Support
• PA DEP - Water Management Deputate

Taxonomy

• The Tree of Life Home Page - reviewed in Science, Vol. 273, pp. 568--569 (1996 August 2)
• TreeBASE Home Page - A Database of Phylegenetic Knowledge
• Kohler's Medicinal Plants - Illustrations Online

Chemistry

• Periodic Table (Beta Test, much improved)
• Periodic Table Webelements
• Bad Chemistry
• ACS Philadelphia Section Home Page
• IUPAC Home Page
• IUPAC
• Great expectations
• Synthetic Metals and Superconductors Lab.-INTRODUCTION
• Neutron Reflectivity of Conducting Polymers
• U.S. National Chemistry Olympiad
• CHEM Main Menu
• Chemistry (Science)
• Instructions 3ODOP Rev. 1.0 (1/94)
• Instructions 3ODP Rev. 1.0 (1/94)
• Conducting Polymers
• Condensed Matter Physics Research: Conducting Polymers and Molecular Magnets
• Internet Chemistry Resources
• Internet Chemistry Resources - Teaching
• WebElements
• SOLUBLE CONDUCTING POLYMERS
• TNO Industrie: Intrinsically Conducting Polymers
• WLH - Chemistry
• The World Lecture Hall

Geology

• Land Surveying
• US Geological Survey Home Page
• National Geophysical Data Center
• CNSS Combined U.S. catalog (Experimental)
• _Volcano Watch_ from the USGS Hawaiian Volcano Observatory

Earthquakes

• Recent Earthquake Maps: World, USA, California-Nevada
• Recent earthquakes in California and Nevada
• NEIC Earthquake Search
• USGS-National Seismic Hazard Mapping Project
• 1994 Guide to Products and Services of the National Earthquake Information Center (NEIC)
• USGS - Earth and Environmental Science Links - Earthquakes
• Earthquake Information from the USGS
• Seismology and Earthquake Information
• Tsunami! The WWW Tsunami Information Resource
• IRIS DMC Home Page
• USGS National Earthquake Information Center Earthquake Information for the World

Volcanoes

• MTU Volcanoes Page
• MTU Volcanoes Page - Rabaul Caldera

History

• PCL Map Collection
• Maps of the Americas
• The Presidents of the United States - from the White House
• Gettysburg Address, Abraham Lincoln
• Library of Congress Exhibitions
• The Gettysburg Address
• Continental Congress and the Constitutional Convention Broadsides Search
• Gettysburg Address
• Africana.com
• Abraham Lincoln Quotes
• Adolf Hitler als Maler und Zeichner
• Gettysburg Address -2
• Historical Map Web Sites
• On This Day April 9 - Letters Between Grant and Lee
• Shifting Borders of Israel A History of Conflict in Israel and the Middle East
• History Buff's Home Page

European History

Mapping & GIS (see also Maps)

• NSF Geosciences Unidata Integrated Earth Information Server (IEIS)
• EROS home page
• Earth Science data on the Global Land Information System
• Programs at EROS Data Center
• USGS Geo Data
• USGS: Geo Data
• USGS Geospatial Data & Information Products
• GLIS
• EOSDIS DAAC at EROS Data Center
• SIR-C geographic search
• NASA SIR-C Precision Data
• NASA SIR-C Data
• Global Land Information System
• Earth Science data on the Global Land Information System
• Clearinghouse Gateway Form
• Status of NSDI Clearinghouse Nodes
• MAGIC Map and Geographic Information Center - Connecticut
• USGS National Mapping Information Home Page
• USGS ESIC: Ordering USGS Products
• USGS National Mapping Geospatial Data Clearinghouse
• USGS Geospatial Data & Information Products
• USGS Mapping Information NMP Programs & Activities
• USGS Geospatial Data & Information Products -- better
• Rolla Earth Science Information Center Page
• GLOBE Visualization Home Page
• EXPO Terrain Map
• The UC CD-ROM Information System: Past, Present and Future
• MassGIS - Download Data - very good data for Massachusetts, including orthophotos for much of the eastern part of the state and quadrangle maps for the whole state
• MassGIS - Table of Contents
• Compendium Maps & Data
• National Imagery and Mapping Agency
• Pennsylvania Spatial Data Access (PASDA)
• Metadata & Data Topics
• Links to Other Sites

GIS

• Geographical Information Systems (GIS) WWW Resource List
• GeoWeb For GIS/GPS/RS

Data

• STARTING THE HUNT: Guide to On-line and Mostly Free U.S. Geospatial and Attribute Data
• UCAR Data - includes Elevation Data
• XEROX Map Data
• Earth Images and Data
• Terrain Analysis Home Page
• Census TMS Home Page
• USGS -- GIS Data for Water Resources
• Census Data Access Tools
• Data Access Tools
• Pennsylvania GIS Digital Geographic Library
• US EPA Region III: GIS Home Page
• Data for You
• Downloadable Data
• GCRIO On-line Data
• Pennsylvania State Data Center Welcome!
• Datasets Online
• The Goddard DAAC

Software

• Directory of /pub/systems/simtelnet/win3/gis
• Free GIS Software from ESRI

Photos

Aerial Photos

• TerraServer - Microsoft Database of Aerial Photos
• Digital Orthophoto Quad - Quarter Quad Search Criteria
• USGS NSDI Clearinghouse - Digital Orthophoto Quadrangles
• AltaVista Search: Simple Query Digital Orthophoto
• NAPP Photography Examples Page
• National Mapping Information - Digital Orthophoto Program
• Availability of USGS Geospatial Data & Aerial Photography Products
• DOQ Status Graphics
• Pennsylvania Status Graphics
• MIT + MassGIS Digital Orthophoto Project
• MIT Digital Orthophoto Browser - Harvard
• Penn Library-Philadelphia DOQs
• MassGIS - Orthophoto Quads - Panel 1 Index Map
• Microsoft TerraServer Image Page - Tredyffrin Twp Area
• Microsoft TerraServer - Harvard
• Microsoft TerraServer Full Resolution Image Page - Our House

Maps

• PCL Map Collection
• FTP directory -pub-pasda-drg24k- at origin.gis.psu.edu
• Search Maps Large Scale - Covers small area
• MAGIC: Bashbish Falls 7.5 Minute USGS Quadrangle
• Maps and Data Center
• Xerox PARC Map Viewer: world 0.00N 0.00E (1.0X)
• Quick Start for the National Atlas of the United States Interactive Map Browser
• John R. Borchert Map Library
• USGS Mapping Information: Home Page
• Map-Related Web Sites
• State Geospatial Data and Maps -Map Collection
• FGDC Metadata for Valley Forge PA DRG
• Valley Forge, PA Digital Raster Graphics
• Valley Forge PA DRG
• PASDA Atlas

Satellite Photos

• Global 1KM AVHRR Land Imagery Server
• CEPS/NASM SMITHSONIAN INSTITUTION
• Index of /RPIF/LANDSAT/
• Landsat Images - U.S. States
• Landsat Images - Pennsylvania
• SOURCES OF EARTH AND PLANETARY PHOTOGRAPHY
• CEPS-Regional Planetary Image Facility
• Earthnet Online - European Remote Sensing Data, etc
• Declassified Intel. Satellite Photos Search Criteria
• EOSPSO Homepage
• Earth Images and Data
• The Observatorium
• SeaWiFS Project - Homepage
• SeaWiFS Project - Ocean Color Gallery
• SeaWiFS Project Image Archive
• RESURS-01 Satellite
• Nighttime Lights

Geography

• CIA World Factbook 1998

Math

• James Gleick
• Gary Ramseyer's Archives of Statistical Fun
• The Uselessness of Pi and its irrational friends

Math Competitions

• Math Competitions Archive
• 1996 USAMO Qualifiers
• Math Competitions Archive
• 1997 USAMO Roster
• janitorial central.
• MOP '96
• MOP '96 field guide
• The 1995 MOP Hall of Fame
• IMO Home Page
• AHSME New York 1998 Results USAMO Participants
• Putnam exam stuff
• MOPNet
• Index of /~kkedlaya/mopnet/
• MOPNet
• Past Putnam Exams
• Welcome to the Math League
• Math League Contest Results
• MATHCOUNTS
• ARML home page
• William Lowell Putnam Competition
• American Mathematics Competitions (AMC) Index Page

Meteorology

Physics

• SCIENCE HOBBYIST Misconceptions Page
• Los Alamos Physics Papers (Gopher)
• PhysicsJava applets
• Electronic Visualization Lab
• Superconducting SuperCollider

Model Bridges

• The Great Balsa Bridge Contest
• http--members.macconnect.com-users-c-crashcite-balsabasics.html
• CHS, JPL, & Bridges
• Software Inventions - Model Bridge
• Every thing about Bridges
• Bridge Building Contest Home Page

Psychology

• American Psychological Society
• List of Psychology WWW Pages around the world

(Back to Links, L. David Baron)

LDB, dbaron@fas.harvard.edu