Method for performing experiment for observing molecular motion

A technology of molecular movement and experimentation, applied to teaching aids, educational tools, instruments, etc. operated by electricity, can solve the problems of invisible molecular movement, low efficiency, expensive instruments, etc.

Inactive Publication Date: 2009-12-16
赵绍兴
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. If ordinary ink is diluted with water and directly observed with a biological microscope owned by ordinary high schools, no molecular movement can be seen at all
[0005]2. If you use a high-power microscope with a power of more than 100,000 times to observe, because the instrument is expensive and can only meet the needs of a small number of students in the classroom, it is not Good for everyone, or time-consuming, laborious, and inefficient
[0006]3. Since the microscope is only suitable for one person to observe in turn, it is not conducive for teachers to make real-time analysis and explanation in class

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: 1. Grinding: put 1 / 4-1 / 2 water in the glass vessel, and grind it in the glass vessel with ink for 30-100 times; 2. Take liquid: when the ink is ground to a certain concentration , use a dropper to take 1-3 drops into the groove of the hemocytometer, and cover it with a cover glass. Note that after covering the cover glass, there should be no air bubbles in the groove; 3. Put the hemocytometer on the microscope On the observation platform, adjust the microscope, and you can see the "trajectory of molecular motion" in the eyepiece. 4. Align the lens of the video display stand vertically with the eyepiece of the microscope, replace the natural light with infrared light as the incident light source of the microscope, adjust the focal length of the video display stand until many small carbon particles can be seen on the large screen--" Molecules in random motion".

Embodiment 2

[0017] Embodiment two: 1, grind: put into appropriate amount of water in the glass vessel, grind 60 times or 80 times, or 90 times in the glass vessel with ink; 2, take liquid: when ink is ground to certain concentration, Use a dropper to take 1-3 drops into the groove of the hemocytometer, cover with a cover glass, and pay attention that after covering the cover glass, there should be no air bubbles in the groove; 3. Put the hemocytometer on the microscope On the platform, adjust the microscope, and you can see the "track of molecular motion" in the eyepiece. 4. Align the lens of the video display stand vertically with the eyepiece of the microscope, slowly adjust the focal length of the video display stand, and you can see many small carbon particles on the large screen - "molecules in irregular motion". The smaller the carbon particles, the more intense the movement. In this way, the observation of the "molecular movement phenomenon" is better realized, and it becomes possi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for performing an experiment for observing molecular motion, which comprises the following steps: grinding, during which water is filled in a vessel and grinding an ink stick in the vessel; liquid taking, during which 1 to 3 drops of liquid is taken by a burette after the ink stick is ground in the vessel for a plurality of times and placed into a groove on a blood counting chamber, cover glass is covered, and excessive water on the edge is absorbed by paper; and the placement of the blood counting chamber on a viewing platform of a microscope and the adjustment of the microscope for observation of 'molecular motion trace' represented by a plurality of carbon particles from an ocular lens. A camera on a video display stand can be aimed at the ocular lens of the microscope vertically, and the focus of the video display stand is adjusted till 'molecular random motion' represented by a plurality of carbon particles can be seen on the large screen. According to the technical proposal, the 'molecular motion trace' can be observed with a low power biological microscope in a common middle school by using ink produced by grinding an ink stick in the vessel, single-student observation can be changed into the real-time common observation of the students in class by the conversion and amplification of the video display stand, and a teacher can give real-time analysis and explanation. Thus, the experiment is more visual and universal, the interests of students are aroused, and the classroom teaching effect is improved.

Description

technical field [0001] The present invention relates to an experimental method for observing molecular motion in physics, specifically related to the first edition in May 2004, the second edition in April 2007, and the first printing in Zhejiang Province in March 2008. It was approved by the National Primary and Secondary School Textbook Approval Committee in 2004, edited by People's Education Publishing House, Curriculum Textbook Research Institute, and Physics Curriculum Textbook Research Center, and published by People's Education Press. An improvement of the experiment of observing molecular motion in the section "Brownian Motion" in the first chapter "Theory of Molecular Motion" (textbook page 5). Background technique [0002] If you want to really observe the molecular movement, due to the insufficient magnification, it is impossible for ordinary optical microscopes. Only through electron microscopes, and it needs more than hundreds of thousands of times, which is beyo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/06G09B5/02
Inventor 赵绍兴
Owner 赵绍兴
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap