How do "security tags" in shops work? I'm referring to the white plastic, bar-coded tags containing...
from the Internet
Do all pencil lead erase the same? Why or why not? Which pencil lead erases the best?
from Abilene, Texas, U.S.A.
Can you help me find a simple definition of "inertial coupling" (if there is a simple definition)....
What is electrical engineering? What is the difference between electrical engineering and...
from Bloomington, IND.
Ok, this is my project: I have put roughly two cups of rice in a sock and threw it in the microwave...
from New York City
What is the chemical make-up of film? I am searching for a detailed make-up of either 35mm film for...
from Hong Kong
How can I build a water purifier?
I am curious as to how much electricity over given periods of time (instantly to say a 10 seconds)...
JWMS Science Class
We are studying the electromagnetic spectrum. We have a question. Can you speed up radio waves? If...
What is the composition of an American nickel? Also, do you think that a nickel has a higher...
Is the up and down movement of a piston in a combustion engine a waste of impulse energy? The...
How are minerals used in the production of Canadian coins?
Which metal conducts heat the fastest?
from El Dorado, Arkansas
I was wanting to make my own acid stain for concrete. I have muriatic acid and heavy metals...
from Victoria, BC, Canada
I am interested in metal fatigue in bicycle frames. Does the steel or aluminum in a bike frame get...
from the Internet
Why has Aluminium only recently been extracted from its ore?
from Denver, Colorado
I am in the 6th grade in Denver, Colorado. I made a machine out of 2 by 4s that will kick a ball. ...
In my recent science project, I tried discharging batterys in the freezer, fridge and room. The...
from East Mapleton
If I have two 6 volt lead acid Batteries with a 400 ampere hour charge in each one. And I wire the...
from the Internet
What everyday appliance uses electrostatics?
I am currently doing research on the e-bow, a guitar effect that calls upon an infinite feedback...
Why do ice cubes melt quicker on stainless steel than a china plate and fire clay?
What do you think of a Gas/Electric hybrid car? I made a power generation device made up of 8 a.c....
Is it feasible to embed microchips carrying pertinent data, health, history, money etc. into humans?
Why do street lights shut down, often, when we drive underneath them? Oftentimes, my boyfriend and...
What is more efficient: to push or pull a car (front wheel vs. rear wheel drive)?
Last year in school we learned about nuclear decay, and how some atoms decay by releasing gamma...
I heard that electricity can be transmitted in other forms than electron flow; like electromagnetic...
For school I need to know about natural convection and forced convection. I need to know the...
from Halifax, N.S.
How do you calculate water flow rate (volume/sec) based on water pressure and hole or pipe size?...
How can I separate NaCl so I can obtain Na?
I know the basic details of how an ionization smoke detector works, where particles enter the...
How many water and wastewater treatment plants in Canada are using chlorine gas for disinfection?
from Avon Lake
I am doing a report on aluminum and the impact it has on our environment for a science class. Do...
What is the main problem faced by scientists studying the use of nuclear fusion as a source of...
from Owen Sound
How can I make a simple flashlight?
If we heat a square metal page with a circle hole in the center of it, what will happen to both the...
from fort walton beach, fl
I just recently did an experiment using paper airplanes with different wing types (swept back at...
Has anyone ever weighed nuclear reactions in reactors to see if the reactor weighs more while...
Does the diameter of a tree have anything to do with the percentage of lichen coverage on the tree?
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