Tuesday, 21 January 2020 09:00
Q3-01: Helix Diffraction
Additional Info
- ID Code: Q3-01
- Purpose: To model the structure of a helical molecule
-
Description:
The spiral structure of DNA was discovered through diffraction. This demonstration shows a simplified model, diffraction through a single (rather than double) helix. Several springs are mounted to enable the laser to be pointed at each in turn, including one distorted to show the effect of changing the angle.
(photo credit: Mary Chessey, UMD) - Availability: Available
Published in
Q3 Genetics and Molecular Biology
Tagged under
-
C8-03: GALILEO'S PENDULUM
Demonstrate conservation of energy in a simple system.
Read More
-
C8-04 HILL TRACK
Demonstrates conservation of energy Read More
-
C8-05: CONSERVATION OF ENERGY IN VERTICAL PROJECTILE
Show the relation between initial velocity and height of a vertical projectile.
Read More
-
C8-06 PILE DRIVER
Illustrates gravitational potential energy converting into kinetic energy converting into work Read More
-
C8-11 INTERNAL VS. EXTERNAL ENERGY - SPRING-COUPLED SUPERBALLS
Shows that when energy disappears from the center of mass motion it may be converted into internal energy Read More
-
C8-12: JUMPING MASSES WITH INTERNAL SPRINGS
Demonstrate conversion of internal energy of a spring into kinetic energy and then gravitational potential energy.
Read More
-
C8-13: BUNGEE JUMPER MODEL
Determine the minimum value of the spring constant of a bungee rope to ensure a safe jump.
Read More
-
C8-14 JUMPING CLAMP
Demonstrates mechanical potential energy transforming into kinetic energy Read More
-
C8-21: ROCK AND WASTE BASKET
Demonstrate conservation of energy in a humorous way.
Read More
-
C8-22: ENERGY CONVERSION - SUPERBALL AND SOUNDING BOARD
Show transformation of energy from one form to another.
Read More
-
C8-23: WORK DONE BY PUSHING ON WALL
Illustrates that the wall and the floor do no work.
Read More
-
C8-31: POWER - EXERCISE CYCLE
Measure human work.
Read More
-
C8-32: POWER - CLIMBING LADDER
A simple method for illustrating power and the unit of the horsepower.
Read More
-
C8-33: POWER - USING GRAVITY
Demonstrate mechanical power.
Read More
-
C8-34: POWER - INSTRUCTOR DRAGGING CONCRETE BLOCK
Demonstrate power. Read More
- 1