Wednesday, 25 June 2014 15:36
I1-61: DUST EXPLOSION
Additional Info
- ID Code: I1-61
- Purpose: Produce a dust explosion.
- Description: A rounded tablespoon of lycopodium powder placed in the funnel is blown upward by blowing into the end of the rubber tube, which can be stretched out. When the cloud of powder reaches a burning candle flame, on the top mount, it ignites readily to create a dust explosion. This is a very dramatic effect.
- Availability: Available
- References: REFERENCES: (PIRA 4F10.40) See also Demonstration I1-62: DUST EXPLOSION MODEL, which describes why this effect is so dramatic. The September 1997 issue of HealthSense, the Mid Atlantic Medical Services, Inc. Membership Newsletter, points out that use of powdered sugar on childrens' birthday cakes could lead to this effect when the candles are blown out!!
- Loc codes: I1, I0, C2, FS2
Published in
I1 Thermal Properties of Matter
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I1-01: THERMOMETERS
Show several types of thermometers. Read More
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I1-11 THERMAL EXPANSION - BALL AND HOLE
Illustrate thermal expansion in a paradoxical way. Read More
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I1-12: THERMAL EXPANSION - BALL AND RING
Demonstrate thermal expansion. Read More
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I1-13 THERMAL EXPANSION - BIMETAL STRIP
Demonstrate differential thermal expansion. Read More
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I1-14: THERMAL EXPANSION OF ALUMINUM - OPTICAL LEVER
Demonstrate thermal expansion in a complicated way. Read More
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I1-15: THERMAL EXPANSION - PIN BREAKER
Demonstrate thermal expansion in a dramatic way. Read More
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I1-16: THERMAL CONTRACTION OF CUPS WITH LN
Measure coefficients of linear expansion. Read More
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I1-17: THERMOSTAT - MODEL
Model of use of a bimetal strip in a thermostat. Read More
-
I1-18: BIMETALLIC STRIP THERMOMETERS
Allow students to see how bimetallic strips are used in thermometers and thermostats. Read More
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I1-19: LAVA LAMP
Demonstrate differential thermal expansion between two liquids, and to take us all back to the 1960s. Read More
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I1-21: WATER NEAR 4 DEGREES CELCIUS
Demonstrate that the maximum density of water occurs around 4 degrees centigrade. Read More
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I1-22: WATER DENSITY VS TEMPERATURE
Demonstrate the change in the density of water with temperature. Read More
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I1-32: RUBBER BAND CONTRACTION DURING HEATING
To demonstrate that rubber contracts when heated. Read More
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I1-40: REVERSIBLE THERMOELECTRIC DEMONSTRATOR
Demonstrate thermoelectric power generation or how thermoelectric devices can create hot and cold regions. Read More
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I1-41: THERMOELECTRIC MAGNET
Demonstrate production and use of thermoelectric current. Read More
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I1-42: THERMOELECTRIC FAN
Illustrate generation and use of thermoelectric current. Read More
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I1-51: RUBBER AT LN TEMPERATURE
Demonstrate how a normally elastic material at room temperature becomes rigid at very low temperatures. Read More
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I1-52: TUNING FORK AT LIQUID NITROGEN TEMPERATURE
Demonstrate the change in frequency of a tuning fork at liquid nitrogen temperature. Read More
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I1-53: LEAD BELL AT LIQUID NITROGEN TEMPERATURE
Demonstrate the effect of temperature on vibrations in a lead bell. Read More
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I1-61: DUST EXPLOSION
Produce a dust explosion. Read More
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I1-62: DUST EXPLOSION MODEL
Show why small particles of flammable material can create a dust explosion when ignited. Read More
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I1-63: HYDROGEN EXPLOSION
Produce a hydrogen explosion. Read More
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I1-64: BURNING CANDLE - COMBUSTION PROCESS
Demonstrate features of the burning process and to debunk myths about this supposedly well-known demonstration. Read More
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I1-71: SHAPE-MEMORY ALLOY - THERMOBILE
Illustrate shape-memory alloy. Read More
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I1-72: SHAPE-MEMORY ALLOY - ICEMOBILE
Illustrate shape-memory alloy. Read More
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I1-73: SHAPE-MEMORY ALLOY - COOL CRAFT
Illustrate shape-memory alloy. Read More
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I1-74: SHAPE-MEMORY ALLOY - CLOVER
Illustrate shape-memory alloy. Read More
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