science brains at work!?

What are the advantages and disadvantages of wind energy?

How are waves formed? Do you think wave ebergy comes indirectly from the sun? why?

How will knowing when it is high/low tide be useful to human kind?

Why is crude oil found under the seabed or under land which was once covered by the sea?

Why do fires sometimes break out by themselves in landfills containing rubbish?

Dams used for storing water have their limitations. What are they?

The automatic switch found in an electric kettle is considered an energy saving device. How does this automatic switch save energy?

Name some energy-saving devices that are commonly used other than energy-saving light bulbs.

What ia a biogas? What can it be used for?

What is the difference between a tidal power station and a hydroelectric power station?

What are the advantages and disadvantages of niclear power energy?

More questions – my profile. Thank you!

A lot of questions, young lady. You would get a better response if you asked one at a time, though.

Which cost is too high?

The UK Government is promoting new generation nuclear power stations. Many environmentalists are suggesting that tidal power is a much better option.

The Severn Barrage tidal power plan is one such option. It is predicted to produce 4.2% of the UK’s electricity from the predictable ebb and flow of the tide.

How it works: Water from the incoming tide flows in through the dam’s sluice gates which close at high tide and the trapped water is pushed out at a high pressure through 200 turbines.

The power that could be created annually would be the equivalent of three nuclear power reactors or 18 million tonnes of coal.

However it is controversial as one of the most precious wildlife habitats is threatened. Dr Tim Stowe Director of RSBP Wales claims that 50% of mudflats would be lost. These are the feeding grounds for 65,000 birds which include the Bewick’s swan, ringed plover, redshank and curlew.

So Which cost is too high?

The three Nuclear Power Stations to produce the same energy annually?

Or the Severn Barrage Tidal Power Scheme?

Or is the cost to the environment – the mudflats far too high to even consider the Severn Barrage Tidal Power Scheme?

http://en.wikipedia.org/wiki/Severn_Barrage

http://www.reuk.co.uk/Severn-Barrage-Tidal-Power.htm

Country Living Magazine October 2008

I was under the impression that wave power is still rudimentary and that underwater machines are very vulnerable to corrosion and storm damage and so are considered too expensive as they are too expensive to maintain over the long term???

So which cost is TOO high?
Simplicity: the Oceanlinx unit has only one principle moving part, which is located above water. All the technical equipment operates above the water, thereby improving reliability and providing easy access for maintenance and repair

Is the criticism still not the same? The cost of maintenance and repair is still exceptionally high resulting in the units having a short life span (?)

http://answers.yahoo.com/question/index?qid=20081016043645AAN5olW&r=w&show_comments=true&pa=FZB6NWHjDG3N56z6v_2wXDIZ3ydVs4kUEeOOEGXHYR0Gjoi7Xry1Vg–&paid=add_comment#openions

The harsh reality is that both costs are too high.

Power generation at the expense of ecosystem destruction is a false economy. By building a dam of this nature, a significant area of biodiverse land will be destroyed. The purpose of these schemes is to cut down of greenhouse emissions, which is the very thing the area being threatened excels at doing.

To build a bridge to save carbon emissions by destroying a huge area of land that fixes carbon is a false economy.

Nuclear power is, superficially a carbon-clean energy, in as far as nuclear reactors process enriched uranium into byproducts creating heat which is used to generate electricity. The process is carbon neutral, but the reactors themselves are not. Uranium extraction is highly energy intensive, and the identified reserves of it are rather small. It is possible that more may be found by new processes involving gas extraction from rock, but these are highly inefficient and polluting.

Then there is the issue of waste disposal, which is already extremely controversial. The liabilities for reactors are so great that no private company will underwrite them, and for existing reactors they have spiraled vastly above original projections. There is no reason to believe that the new cost estimates the government relies upon are any more reliable than the old ones.

There are good ways to produce clean energy without causing substantial habitat destruction or creating a menace of hazardous waste. In his book "Heat", George Monbiot outlines who far offshore windfarms could be connected to the grid using DC transmission lines (the reasons for this are technical and well reviewed), and that, if sufficiently dispersed round coastal regions these may provide up to 10%. perhaps more of the current grid requirement.

Similarly, micropower generation – that is – small power plants constructed near population centres are much more efficient sources of energy as they lose much less in transmission. These could be municipal, such as small coal fired stations with carbon reclamation, water wheels, and even solar installations on private homes feeding back into the grid. Some of these things could be incentivised, both to local councils and to private individuals and enterprises.

The last point is that with existing systems, the UKs emissions targets simply cannot be met. Meeting them requires a radical shift in consumption habits, adoption of energy efficient consumer goods, and an enforced carbon credit scheme in the private sector.

The government is convinced that nuclear power is a needed filler in the process of reducing carbon emissions, and it has a very prominent supporter in this belief in James Lovelock, the original proponent in Gaia theory, who is vehemently opposed to most alternative modes of energy production, though perhaps he is a product of days in which nuclear power was viewed as the great halcyon provider. He still believes sustainable fusion is viable.

As with medicine, prevention is vastly better than cure, and I believe that the budget assigned to either project would be better spent in a trade in scheme for domestic goods – everything from fridges to washing machines to coffee percolators – anything where a significant reduction in consumption can be achieved. This could and should immediately cut consumption, instill energy awareness amongst consumers and make it a positive change for them individually, as well as providing significant commercial incentives to produce low consumption goods.

The solutions proposed by the government presently are bereft of imaginative and avoid or evade tackling the underlying causes of carbon emission.

Edit re Mudflats and carbon sinks. Precise data for the area in question is hard to come by, however, existing research in other areas demonstrates that it is highly significant. References are provided in sources, and the following quote is extracted from the first live link. The final live link provided is the most user-friendly.

"During the past 22 years, the area of S. alterniflora salt marshes in the Jiangsu Province increased by 1875 times. Accordingly, the total net primary production (TNPP) of the S. alterniflora salt marshes in the Jiangsu Province added up to 3760 million kg, and CO2 fixed by the S. alterniflora salt marshes amounted to 3130 million kg over the 22 years. A significant difference was found between bulk density in three research sites (n = 20, p < 0.05, ANOVA), and the SOC in S. alterniflora salt marshes was significantly higher than that in mudflats (n = 20, p < 0.05, ANOVA). TSOC in 2004 was 247 million kg in S. alterniflora salt marshes and 164 million kg in mudflats, indicating that 83 million kg of organic carbon was sequestrated into the soil pool because of planting S. alterniflora. These results imply that S. alterniflora enhanced the carbon sink capacity of the intertidal ecosystem in the Jiangsu Province, positive contribution to alleviating CO2 emissions to the atmosphere."

Does gravity create energy?

I dont understand this. Energy cannot be created or destroyed, right? so where does tidal energy come from? Surely it is a perpetual source of energy as the pull of water by the moon will always exist as long as the moon exists so therefore energy will always be being created?

I hope this makes sense

The extractable energy is not in the tides; it is in the motion of the tides with respect to the continents. Extracting this energy would induce friction and slightly slow the rotation of the Earth. In fact, this motion is slowing anyway because of the friction between tides and land and would eventually stop, if it weren’t for the sun swallowing the Earth and Moon in 5 billion years.

Earth Science help ppllleeaaaassseeee?

Can someone tell me if I got these right?

1. The footprints of a dinosaur are an example of what type of fossil? (1 point)
unaltered remains
mold
carbonized remains
(x) trace fossil

2. Differences in ocean-surface height can be measured by ____. (1 point)

(x) sonar
satellites
submersibles
none of the above

3. Which of the following is associated with mid-ocean ridges? (1 point)
(x) rift valleys
mountainous topography
extreme temperatures
volcanic structures

4. Which regions are thought to be the most level places on Earth? (1 point)
(x) mid-ocean ridges
abyssal plains
deep-ocean trenches
continental slopes

5. Where does seafloor spreading occur? (1 point)
(x) at convergent plates
on seamounts
near the ocean surface
at divergent plates

6. Biogenous sediment is made up of ____. (1 point)
(x) minerals from land
shells and skeletons of marine organisms
minerals from the ocean
evaporative salts

7. The highest salinity would be found in which of the following areas? (1 point)
an area with high rates of precipitation
an area with high rates of evaporation
an area with plenty of runoff
(x) all of the above

8. Where would you find the lowest density seawater? (1 point)
surface mixed zone
transition zone
(x) deep zone
abyssal zone

9. According to the conveyor belt model of ocean circulation, what happens when water reaches the poles? (1 point)
The salinity of the water increases.
(x) The salinity of the water decreases.
The density of the water decreases.
The temperature of the water increases.

10. Which of the following is NOT true about a wave in the open ocean? (1 point)
Water particles move in a circular path.
(x) The wave form moves forward, but the water particles do not advance appreciably.
Water particles travel with the wave.
As the wave travels, water particles pass the energy along by moving in a circle.

11. When is the daily tidal range greatest? (1 point)
spring tide
ebb tide
neap tide
(x) flood tide

12. Which of the following structures is built to protect boats from large breaking waves? (1 point)
jetty
groin
breakwater
(x) seawall

13. Which of the following is true about equinoxes? (1 point)
(x) They occur in June and December.
The sun’s vertical rays are striking either 23.5° S or 23.5° N.
Days and nights are equal in length everywhere.
The length of daylight in the Arctic and Antarctic Circles is 24 hours.

14. Earth receives energy from the sun through what method of heat transfer? (1 point)
conduction
convection
(x) radiation
none of the above

15. Which of the following best describes the temperatures of a city located along a windward coast? (1 point)
warmer summer temperatures than an inland location at the same latitude
(x) cooler summer temperatures than an inland location at the same latitude
summer temperatures that are very similar to an inland location at the same latitude
winter temperatures that are less mild than an inland location at the same latitude

16. Isotherms are lines that connect points of equal ____. (1 point)
latitude
(x) temperature
elevation
pressure

17. A cold, dry air mass that moves over warm, tropical waters will likely become ____. (1 point)
colder and drier
(x) warmer and drier
colder and wetter
warmer and wetter

18. A cT air mass is ____. (1 point)
cold and dry
(x) cold and wet
hot and dry
hot and wet

19. Which of the following is considered to be a boundary between two different air masses? (1 point)
warm front
cold front
(x) both warm front and cold front
neither warm front nor cold front

20. Which stage happens first in the life cycle of a middle-latitude cyclone? (1 point)
Occlusion begins.
A front forms.
Wave shape forms.
(x) Air flows counterclockwise.

21. Thunderstorms form when warm, humid air rises in a(n) ____. (1 point)
unstable environment
stable environment
clockwise spiral
(x) counterclockwise spiral

22. What happens to the intensity of solar energy as latitude increases? (1 point)
It stays the same.
(x) It increases.
It decreases.
It doubles.

23. Global winds move warm air toward the ____. (1 point)
equator
oceans
atmosphere
(x) poles

24. Which of the following is NOT a principal group in the Köppen system? (1 point)
(x) polar climate
dry climate
west coast climate
humid tropical climate

25. In dry climates, rates of evaporation exceed ____. (1 point)
rates of condensation
(x) rates of precipitation
number of sunny days
average temperatures

26. What is the relationship between fossil fuels and the greenhouse effect? (1 point)
Burning fossil fuels decreases incoming solar radiation.
Burning fossil fuels decreases the absorption capacity of greenhouse gases.
Burning fossil fuels lowers the greenhouse effect.
(x) Burning fossil fuels releases carbon dioxide into the atmosphere.

27. The geocen

4/
Mid ocean ridges are actually sloped, highest in the middle and then they plane out the further away you get.
5/
Sea floor spreading occurs are divergent margins (ie plates moving away from each other… spreading). Convergent margins are plates ramming into each other.
17/
wouldn’t it become warmer and wetter?
21/
unstable environment. Conditional instability is the situation needed for thunderstorms. It really doesn’t matter which direction, especially taking into account the northern/southern hemisphere differences.
22/
As you get closer to the poles, intensity of sunlight decreases on average.

PLEASE HELP WITH EARTH SCIENCE?

1. The footprints of a dinosaur are an example of what type of fossil? (1 point)
unaltered remains
mold
carbonized remains
trace fossil
2. Differences in ocean-surface height can be measured by ____. (1 point)
sonar
satellites
submersibles
none of the above
3. Which of the following is associated with mid-ocean ridges? (1 point)
rift valleys
mountainous topography
extreme temperatures
volcanic structures
4. Which regions are thought to be the most level places on Earth? (1 point)
mid-ocean ridges
abyssal plains
deep-ocean trenches
continental slopes
5. Where does seafloor spreading occur? (1 point)
at convergent plates
on seamounts
near the ocean surface
at divergent plates
6. Biogenous sediment is made up of ____. (1 point)
minerals from land
shells and skeletons of marine organisms
minerals from the ocean
evaporative salts
7. The highest salinity would be found in which of the following areas? (1 point)
an area with high rates of precipitation
an area with high rates of evaporation
an area with plenty of runoff
all of the above
8. Where would you find the lowest density seawater? (1 point)
surface mixed zone
transition zone
deep zone
abyssal zone
9. According to the conveyor belt model of ocean circulation, what happens when water reaches the poles? (1 point)
The salinity of the water increases.
The salinity of the water decreases.
The density of the water decreases.
The temperature of the water increases.
10. Which of the following is NOT true about a wave in the open ocean? (1 point)
Water particles move in a circular path.
The wave form moves forward, but the water particles do not advance appreciably.
Water particles travel with the wave.
As the wave travels, water particles pass the energy along by moving in a circle.
11. When is the daily tidal range greatest? (1 point)
spring tide
ebb tide
neap tide
flood tide
12. Which of the following structures is built to protect boats from large breaking waves? (1 point)
jetty
groin
breakwater
seawall
13. Which of the following is true about equinoxes? (1 point)
They occur in June and December.
The sun’s vertical rays are striking either 23.5° S or 23.5° N.
Days and nights are equal in length everywhere.
The length of daylight in the Arctic and Antarctic Circles is 24 hours.
14. Earth receives energy from the sun through what method of heat transfer? (1 point)
conduction
convection
radiation
none of the above
15. Which of the following best describes the temperatures of a city located along a windward coast? (1 point)
warmer summer temperatures than an inland location at the same latitude
cooler summer temperatures than an inland location at the same latitude
summer temperatures that are very similar to an inland location at the same latitude
winter temperatures that are less mild than an inland location at the same latitude
16. Isotherms are lines that connect points of equal ____. (1 point)
latitude
temperature
elevation
pressure
17. A cold, dry air mass that moves over warm, tropical waters will likely become ____. (1 point)
colder and drier
warmer and drier
colder and wetter
warmer and wetter
18. A cT air mass is ____. (1 point)
cold and dry
cold and wet
hot and dry
hot and wet
19. Which of the following is considered to be a boundary between two different air masses? (1 point)
warm front
cold front
both warm front and cold front
neither warm front nor cold front
20. Which stage happens first in the life cycle of a middle-latitude cyclone? (1 point)
Occlusion begins.
A front forms.
Wave shape forms.
Air flows counterclockwise.
21. Thunderstorms form when warm, humid air rises in a(n) ____. (1 point)
unstable environment
stable environment
clockwise spiral
counterclockwise spiral
22. What happens to the intensity of solar energy as latitude increases? (1 point)
It stays the same.
It increases.
It decreases.
It doubles.
23. Global winds move warm air toward the ____. (1 point)
equator
oceans
atmosphere
poles
24. Which of the following is NOT a principal group in the Köppen system? (1 point)
polar climate
dry climate
west coast climate
humid tropical climate
25. In dry climates, rates of evaporation exceed ____. (1 point)
rates of condensation
rates of precipitation
number of sunny days
average temperatures
26. What is the relationship between fossil fuels and the greenhouse effect? (1 point)
Burning fossil fuels decreases incoming solar radiation.
Burning fossil fuels decreases the absorption capacity of greenhouse gases.
Burning fossil fuels lowers the greenhouse effect.
Burning fossil fuels releases carbon dioxide into the atmosphere.
27. The geocentric model of the universe stated that ____. (1 point)
Earth revolved around the celestial sphere
the sun was the center of the universe
Earth was a “wanderer”
Earth was the center of the universe
28

1. The footprints of a dinosaur are an example of what type of fossil? (1 point)

carbonized remains

2. Differences in ocean-surface height can be measured by ____. (1 point)

none of the above

3. Which of the following is associated with mid-ocean ridges? (1 point)
rift valleys

4. Which regions are thought to be the most level places on Earth? (1 point)

abyssal plains

5. Where does seafloor spreading occur? (1 point)

at divergent plates

6. Biogenous sediment is made up of ____. (1 point)

shells and skeletons of marine organisms

7. The highest salinity would be found in which of the following areas? (1 point)

all of the above

8. Where would you find the lowest density seawater? (1 point)

abyssal zone

9. According to the conveyor belt model of ocean circulation, what happens when water reaches the poles? (1 point)

The density of the water decreases.

10. Which of the following is NOT true about a wave in the open ocean? (1 point)

The wave form moves forward, but the water particles do not advance appreciably.

11. When is the daily tidal range greatest? (1 point)

flood tide

12. Which of the following structures is built to protect boats from large breaking waves? (1 point)

seawall

13. Which of the following is true about equinoxes? (1 point)

They occur in June and December.

14. Earth receives energy from the sun through what method of heat transfer? (1 point)

radiation

15. Which of the following best describes the temperatures of a city located along a windward coast? (1 point)

cooler summer temperatures than an inland location at the same latitude

can someone correct this? please Asap?

1. The footprints of a dinosaur are an example of what type of fossil? (1 point)
unaltered remains
mold
carbonized remains
trace fossil****

2. Differences in ocean-surface height can be measured by ____. (1 point)
sonar
satellites
submersibles
none of the above****

3. Which of the following is associated with mid-ocean ridges? (1 point)
rift valleys****
mountainous topography
extreme temperatures
volcanic structures

4. Which regions are thought to be the most level places on Earth? (1 point)
mid-ocean ridges
abyssal plains****
deep-ocean trenches
continental slopes

5. Where does seafloor spreading occur? (1 point)
at convergent plates
on seamounts
near the ocean surface
at divergent plates****

6. Biogenous sediment is made up of ____. (1 point)
minerals from land
shells and skeletons of marine organisms****
minerals from the ocean
evaporative salts

7. The highest salinity would be found in which of the following areas? (1 point)
an area with high rates of precipitation
an area with high rates of evaporation****
an area with plenty of runoff
all of the above

8. Where would you find the lowest density seawater? (1 point)
surface mixed zone
transition zone
deep zone
abyssal zone****

9. According to the conveyor belt model of ocean circulation, what happens when water reaches the poles? (1 point)
The salinity of the water increases.
The salinity of the water decreases.****
The density of the water decreases.
The temperature of the water increases.

10. Which of the following is NOT true about a wave in the open ocean? (1 point)
Water particles move in a circular path.****
The wave form moves forward, but the water particles do not advance appreciably.
Water particles travel with the wave.
As the wave travels, water particles pass the energy along by moving in a circle.

11. When is the daily tidal range greatest? (1 point)
spring tide****
ebb tide
neap tide
flood tide

12. Which of the following structures is built to protect boats from large breaking waves? (1 point)
jetty****
groin
breakwater
seawall

13. Which of the following is true about equinoxes? (1 point)
They occur in June and December.****
The sun’s vertical rays are striking either 23.5° S or 23.5° N.
Days and nights are equal in length everywhere.
The length of daylight in the Arctic and Antarctic Circles is 24 hours.

14. Earth receives energy from the sun through what method of heat transfer? (1 point)
conduction
convection
radiation****
none of the above

15. Which of the following best describes the temperatures of a city located along a windward coast? (1 point)
warmer summer temperatures than an inland location at the same latitude
cooler summer temperatures than an inland location at the same latitude****
summer temperatures that are very similar to an inland location at the same latitude
winter temperatures that are less mild than an inland location at the same latitude

16. Isotherms are lines that connect points of equal ____. (1 point)
latitude
temperature****
elevation
pressure

17. A cold, dry air mass that moves over warm, tropical waters will likely become ____. (1 point)
colder and drier
warmer and drier
colder and wetter
warmer and wetter****

18. A cT air mass is ____. (1 point)
cold and dry
cold and wet****
hot and dry
hot and wet

19. Which of the following is considered to be a boundary between two different air masses? (1 point)
warm front
cold front
both warm front and cold front****
neither warm front nor cold front

20. Which stage happens first in the life cycle of a middle-latitude cyclone? (1 point)
Occlusion begins.
A front forms.
Wave shape forms.
Air flows counterclockwise.****

21. Thunderstorms form when warm, humid air rises in a(n) ____. (1 point)
unstable environment****
stable environment
clockwise spiral
counterclockwise spiral

22. What happens to the intensity of solar energy as latitude increases? (1 point)
It stays the same.
It increases.
It decreases.****
It doubles.

23. Global winds move warm air toward the ____. (1 point)
equator****
oceans
atmosphere
poles

24. Which of the following is NOT a principal group in the Köppen system? (1 point)
polar climate****
dry climate
west coast climate
humid tropical climate

25. In dry climates, rates of evaporation exceed ____. (1 point)
rates of condensation
rates of precipitation****
number of sunny days
average temperatures

1 D
2 B
3 D
4 B
5 D
6 B
7 D
8 A
9 A
10 D
11 A
12 C
13 C
14 C
15 B
16 B
17 D
18 C
19 C
20 D
21 A
22 C
23 D
24 C
25 B

What are your top four issues this upcoming election?

Mine are
1) Overpopulation= this world desperately needs to curb the growth of the planet, education, birth control, only two kids per family.
2) Economy= end all corporate tax breaks, subsidies, offshore tax shelters, donation benefits, etc. spend more money on health care, education, housing, farming, environment.
3) Environment= reduce greenhouse emissions, cut oil use by 25% over the next 20 years, clean air, water, etc, sign kyoto protocol, create alternative sources of energy, wind, solar, tidal, hydroelectric, geothermal, etc.
4) INternational Relations= End the war in Iraq, end neo conservatism, support and respect the international community, no more wars of aggression, end all torture, water boarding, CIA black sites, PATRIOT ACT, illegal wiretapping, suspending habeaus corpus rights, end big government control.

1) National Energy Policy: What is "Next" to power our cars? We need to be on the same page, and move forward quickly as demand keeps increasing, and oil appears to be at or near "peak oil".
2) Economy. Help the middle class. Have high paying jobs here in America. Sure, my socks are cheap if they come from China…but we need jobs here
3) Environment. We only got one planet, America is large industrial country, and we need to be a leader to preserve the world for future generations
4) Get us the Hell out of Iraq. They had no more to do with 9/11 than did Venezuela (they both have dictators that don’t like America, and they both have oil)…actually, I get us out several countries. We have only 6% of the worlds population, we can’t be expected to be the world’s police force. That doesn’t make us weak, either…when was the last time any one was mad at Canada or Sweden?

science lovers? quiz for you?

The fuel for a tidal-generated power electric furnace is a _____
resource.
a. renewable
b. nonrenewable

The fuel for a wind-generated power electric heater is
a _____ resource.
a. renewable
b. nonrenewable

The fuel for a natural gas furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for an electric heater powered by photovoltaic cells
is a _____ resource.
a. renewable
b. nonrenewable

The fuel for an oil furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for a coal furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for a hydropower electric heater is a _____ resource.
a. renewable
b. nonrenewable

he fuel for a woodburning stove is a _____ resource.
a. renewable
b. nonrenewable

Uses the energy of the Sun to heat water directly
a. fossil fuels e. photovoltaic cell
b. geothermal energy f. tidal power
c. hydropower g. solar collector
d. ocean thermal energy

Uses the huge storehouse of energy within the Earth where
the Earth’s crust is thin
a. fossil fuels e. photovoltaic cell
b. geothermal energy f. tidal power
c. hydropower g. solar collector
d. ocean thermal energy

A A B A B B A A G B

science lovers? quiz for you?

The fuel for a tidal-generated power electric furnace is a _____
resource.
a. renewable
b. nonrenewable

The fuel for a wind-generated power electric heater is
a _____ resource.
a. renewable
b. nonrenewable

The fuel for a natural gas furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for an electric heater powered by photovoltaic cells
is a _____ resource.
a. renewable
b. nonrenewable

The fuel for an oil furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for a coal furnace is a _____ resource.
a. renewable
b. nonrenewable

The fuel for a hydropower electric heater is a _____ resource.
a. renewable
b. nonrenewable

he fuel for a woodburning stove is a _____ resource.
a. renewable
b. nonrenewable

Uses the energy of the Sun to heat water directly
a. fossil fuels e. photovoltaic cell
b. geothermal energy f. tidal power
c. hydropower g. solar collector
d. ocean thermal energy

Uses the huge storehouse of energy within the Earth where
the Earth’s crust is thin
a. fossil fuels e. photovoltaic cell
b. geothermal energy f. tidal power
c. hydropower g. solar collector
d. ocean thermal energy

A A B A B B A A G B

Have you noticed that some things used to work better in the past?

Like toilets, for instance; with the new low flow, high efficiency, auto-flush, don’t you find that you end up flushing more often? Not like the old days when you push that lever and EVERYTHING goes down no matter what! Your waste, your wallet, your hamster – whatever! And what about toasters. My parents had a toaster that would toast anything, ANYTHING, you could cram into it in seconds that was made in the 60′s! Now their new toaster takes like 4 hours to warm bread and jams if you put thick slice toast in it! And what about dishwashers. I remember my old dishwasher having about 17 jets in it and you could put an entire turkey dinner in there and it would wash it away down the drain! It sounded like a freight train in a tidal wave when it ran and the dished came out SPOTLESS – now you have to run the single jet, low energy, water conserving suckers 17 times to get your dishes halfway clean OR wash them in the sink before you put them in the washer! Am I the only one that notices?

I totally agree!!!! I also agree with the other poster, everything lasted so much longer back then, too. With less problems it seemed. My parent’s toaster is one mom bought in the early ’80′s, and it still takes less time for hers to blacken bread than the time it takes to get bread warm in mine. And her’s does 4 slices of bread at a time!

Toilets, totally agree! My mom’s house was built in the late ’70′s and her toilets are SO much better than the one’s I have in my house, which was built in ’98. Unfortunately her’s are getting hard to buy parts for, but everything still goes down in ONE flush, not 2 or 3, then grab the plunger!

Mom still has the original dishwasher that came in the house! It’s the last appliance that’s still running strong, though. And it also sounds like a tidal wave crashing through the house, but everything is clean, except it’s a little wet (the drier cycle doesn’t work well).

My biggest b**ch is refridgerators. My mom just replaced her home’s original fridge at Christmas. I have gone through 3, yes 3, new refridgerators in the last 10 years. And her one fridge lasted 28 years! How crappy is that???