技术Alexa排名

1. Ncbi.nlm.nih.govncbi.nlm.nih.gov

网站简介:National Library of Medicine / National Institutes of Health. Offers many important databases (PubMed, GenBank, OMIM) and some tools.

2. Ted.comted.com

网站简介:TED (Technology, Entertainment, Design) is an invitation-only event where the world's leading thinkers and doers gather to find inspiration. Initially an annual conference, the scope of TED has expanded to include a bi-annual global conference, a humanitarian prize, and free audio/video podcasts of extraordinary talks.

3. Autodesk.comautodesk.com

网站简介:Finite element analysis and mechanical event simulation software for virtual prototyping. This was formerly Algor.

4. Howstuffworks.comhowstuffworks.com

网站简介:HowStuffWorks.com is an award winning site covering thousands of topics within its own 10 channels: Auto, Computer, Electronics, Entertainment, Health, Home, Money, People, Science and Travel.

5. Ieee.orgieee.org

网站简介:The IEEE promotes the engineering process of creating, developing, integrating, sharing, and applying knowledge about electro- and information technologies and sciences for the benefit of humanity and the profession.

6. Theguardian.com/technology

网站简介:News and features about the internet and technology. Includes business solutions, science news, e-issues and special reports plus web watch, gadgets, games, blogs and Ask Jack.

7. Popularmechanics.compopularmechanics.com

网站简介:Informative articles on automotive technology, car parts, do it yourself repair, and used cars.

8. Space.comspace.com

网站简介:Offers space, astronomy and technology content, including information, education, entertainment and business news.

9. Head-fi.orghead-fi.org

网站简介:Head-Fi is the meeting place for headphone hi-fi and portable audio enthusiasts.

10. Bbc.co.uk/news/technology/

网站简介:Offers latest news and feature stories about technology with selected video and audio programmes.s.

11. Technologyreview.comtechnologyreview.com

网站简介:MIT's magazine about innovation, with online articles on specific technologies and a focus on the process by which new technology gets out of the lab and into the marketplace.

12. Iitm.ac.iniitm.ac.in

网站简介:Official site. Information about programs offered, departments, activities, research, admissions, events and contacts.

13. Faa.govfaa.gov

网站简介:The FAA is primarily responsible for the advancement, safety and regulation of civil aviation, as well as overseeing the development of the air traffic control system and commercial space travel.

14. Fcc.govfcc.gov

网站简介:USA telecom regulator - responsible for both telecoms and radio/television media.

15. Alldatasheet.comalldatasheet.com

网站简介:Free datasheet archive and search for electronic components and semiconductors.

16. Socalgas.comsocalgas.com

网站简介:Services residential and business clients. Includes options to pay bill online, request services, along with information pertaining to builder services, consulting services, regulatory and safety.

17. Rmit.edu.aurmit.edu.au

网站简介:Royal Melbourne Institute of Technology is one of Australia’s original and leading educational institutions, producing some of Australia’s most employable graduates. An innovative, global university of technology, with its heart in the city center of Melbourne. RMIT also has campuses located outwith Melbourne in regional Victoria, in Vietnam, and runs courses online, by distance education, and at partner institutions throughout the world, the University is one of the largest in the country.

18. Energy.govenergy.gov

网站简介:DOE's home page is organized by topic, including Data and Prices, Efficiency, Environmental Quality, National Security, Science and Technology, and Sources and Production.

19. Aps.orgaps.org

网站简介:Information, member directory and many links.

20. Jpl.nasa.govjpl.nasa.gov

网站简介:Managed for NASA by the California Institute of Technology, JPL is the leading U.S. center for robotic exploration of the solar system.

21. Osha.govosha.gov

网站简介:This is the homepage for OSHA. It has information related to job related safety and health issues, as well as compliance related resources.

22. Spacex.comspacex.com

网站简介:Information about the Falcon Rocket family developed by SpaceX.

23. Iso.orgiso.org

网站简介:A non-governmental organization promoting the development of standardization and related activities in the world. Includes code of ethics, structure, strategies and annual reports.

24. Nxp.comnxp.com

网站简介:Manufactures a wide range of IC's for applications such as automotive, communications, and consumer electronics, among others. Formerly Motorola Semiconductor.

25. Allaboutcircuits.comallaboutcircuits.com

网站简介:Online book by Tony R. Kuphaldt on dc and ac electric circuits, semiconductor devices, analog and digital circuits.