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Cathode rays were discovered by JJ Thomson and carry a negative charge Anode rays were discovered by Goldstein and carry a positive charge.
No, the forced draft fan has positive pressure as it just forces yhe air into the combustion chamber.only the induced draft fan has negative pressureas it removes the flue gases & exhaust gases is stacked up
The negative effect was that they did not hire workers to do the job so a hand full of people did not have a job after the reaper was invented.
Three negative effects of technology are:1 Kids aren't getting enough exercise. 1 Obesity; people relied on technology to get to where they want to go,in the past like first nation people there were fit2 Wasting energy of the environment. 2 I'M NOT SURE ABOUT THIS3 Polluting the environment. 3 Because of poor management in like hydroelectricity its polluting the lakes. Oil pollutes underground water and/or kills animals.Werty
One of the most beneficial inventions is the computer which has made life much more convenient. Discovering the human activities may cause negative effects to the environment is also quite beneficial.
positive
J.J Thompson in 1897 demonstrated that cathode rays are composed of tiny, negatively charged subatomic particles called electrons.
It is and exothermic reaction, which means energy is given out heating the surroundings.
Some things that were invented in 1928 are the ice cube tray, and the electric razor. Other items on the list are the negative pressure ventilator and Freon. Penicillin wasn't exactly invented, but it was discovered in 1928.
The Hindu Festival of Lights, Diwali, has no known significant negative effects on the environment.
Tourism has an enormous negative impact on the environment, both natural and man-made.
Euclid
efficient travel and noise pollution
a standard combustion engine has rather negative effects on the environment today because of overuse of the combustion engine causes pulution in the earths atmosphere and causes the ozone layer to deplete. The new hybrid engines make a mazimum of 1/2 of the poulition of a regular combution engine because the hybrid engine runs off of the gasoline 4 cyl. combustion engine but charges the battery for the electric engine also. the electric engine powers the main accelleration of the car but eventully runs out of charge and automatically swithces over to the combutsion engine to power the car and charge the battery.
If a baby will have a negative environment, it will effect him in a negative manner. He/She will have negative thoughts. And it is our thinking that makes us good or bad, rich or poor etc. So it is very important for a baby to have a positive environment. ;)
1999
yes