The Physics Hypertextbook

Safety: Low trust score
Year Founded: 2002
Global Traffic Rank: 156,422
Estimated Worth: $46,440
Category: Science > Physics

The Physics Hypertextbook is a reaction to the three big problems with textbooks: lack of writer's voice, layouts that reduce readability, and outdated economics. It is a work in progress. Some parts of this book are essentially finished. Some parts are comically underdone. I work on this project in my spare time. You are welcome to use this web...

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Frequently Asked Questions (FAQ)

Q: When was registered?
A: was registered 18 years, 9 months, 1 week, 22 hours, 21 minutes, 3 seconds ago on Saturday, July 13, 2002.
Q: When was the WHOIS for last updated?
A: The WHOIS entry was last updated 2021 years, 4 months, 2 weeks, 6 days, 22 hours, 21 minutes, 3 seconds ago on Monday, November 30, -0001.
Q: What are's nameservers?
A: DNS for is provided by the following nameservers:
Q: Who is the registrar for the domain?
A: The domain has been registered at .
Q: What is the traffic rank for
A: ranks 156,422 globally on Alexa. has a Low Trust Score, and a Statvoo Rank of F.
Q: How many people visit each day?
A: receives approximately 7,680 visitors and 30,720 page impressions per day.
Q: What IP address does resolve to?
A: resolves to the IPv4 address
Q: In what country are servers located in?
A: has servers located in the United States.
Q: What webserver software does use?
A: is powered by webserver.
Q: Who hosts
A: is hosted by SoftLayer Technologies Inc. in Virginia, Chantilly, United States, 20151.
Q: How much is worth?
A: has an estimated worth of $46,440. An average daily income of approximately $86, which is roughly $2,616 per month. Reviews

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H1 Headings

2 :
  1. Welcome
  2. Welcome

H2 Headings

1 :
  1. Table of Contents

H3 Headings

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Keyword Cloud for

quantumcircuitsmotionmechanicsunitswavesvectorinterferenceforceelectromagneticlightheatopticsrotationalelectricsoundeffecttwo dimensionstwopotentialequationsdimensionsdynamicsperiodickinematicscurrentnaturelawsystemphysicssystem of unitsenergymattermomentumpotential energyradiation

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Service Provider:SoftLayer Technologies Inc.
Hosted Country:United StatesUS
Location Latitude:38.9036
Location Longitude:-77.4512
Webserver Software:Not Applicable

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HTTP Header Analysis for

Http-Version: 1.1
Status-Code: 200
Status: 200 OK
Connection: Keep-Alive
Content-Type: text/html
Transfer-Encoding: chunked
Content-Encoding: gzip
Vary: Accept-Encoding
Date: Tue, 09 Mar 2021 22:21:50 GMT
Server: LiteSpeed
Alt-Svc: quic=":443"; ma=2592000; v="43,46", h3-Q043=":443"; ma=2592000, h3-Q046=":443"; ma=2592000, h3-Q050=":443"; ma=2592000, h3-25=":443"; ma=2592000, h3-27=":443"; ma=2592000 Domain Nameserver Information

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Domain Registration (WhoIs) information for

 Domain Name: PHYSICS.INFO
Registry Domain ID: D2268527-LRMS
Registrar WHOIS Server:
Registrar URL:
Updated Date: 2020-06-03T22:14:08Z
Creation Date: 2002-07-13T19:27:51Z
Registry Expiry Date: 2029-07-13T19:27:51Z
Registrar Registration Expiration Date:
Registrar: eNom, Inc.
Registrar IANA ID: 48
Registrar Abuse Contact Email:
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Domain Status: clientTransferProhibited
Registrant Organization: Whois Privacy Protection Service, Inc.
Registrant State/Province: WA
Registrant Country: US
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form:
>>> Last update of WHOIS database: 2020-10-15T16:58:29Z

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