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Jan16-12 Greg Bernhardt
algae, rescue Sticky Thread Pinned: Algae to the rescue ( 1 2 3 ... Last)
It may be valuable to consider microalgae as a potential solution to a number of problems; not the least of which...
Aug13-14 07:16 PM
Ivan Seeking
544 198,079
Before posting anything, please review the Physics Forums Global Guidelines. CC/GW threads in this forum are...
Jun9-14 09:26 AM
Greg Bernhardt
0 3,603
I am trying to understand why is the surface of the earth negative. From the internet search, I found -105 C. I make a...
T 09:57 AM
7 165
there's a significant quake coming in on my seismograph as I type initial report is M 7.1 Guam area, SW Pacific ...
Y 10:01 PM
10 348
Is there a place in the world that is habitable that is free of pollution? I have this idea that there is some part...
Sep16-14 11:48 AM
3 468
here's some awesome eruption video from the 4 Sept 2014 cheers Dave
Sep15-14 04:27 PM
2 512
Viewers will be amused at the slender vortex snaking 3300' above the Iceland volcano, seen here in infrared video. ...
Sep11-14 06:56 PM
1 1,020
I am not sure if this would be where i would post this but here goes a question i been wondering about earth 3.6...
Sep11-14 02:31 AM
8 1,877
Mt. Tavurvur, located near the town of Rabaul in the eastern region of Papua New Guinea, has erupted again. Some...
Sep9-14 03:31 AM
7 1,542
During the history of Earth, there have been several ice ages. What caused the climate to cool so much to create...
Sep6-14 07:29 AM
5 2,025
Which continent is the driest continent? I think it should be Antartica, but I have found it is Australia. I think so...
Sep3-14 02:35 AM
Simon Bridge
7 1,211 6/20/09 New Paper Claims Explanation...
Aug30-14 09:22 AM
94 51,360
hi gang 3 x M6+ events within 24 hrs down the west coast regions of the Americas as recorded on my system here in...
Aug28-14 10:00 PM
13 2,266
Hi. Usually Nile river is assumed as world's longest river with its 4250 miles length but sometimes Mississippi River...
Aug27-14 01:19 PM
16 4,349
I am writing an intro physics problem about a flowing stream. I am going to assume that all of the gravitational...
Aug22-14 08:29 PM
1 1,361
Mix cream in coffee and it never unmixes. Even though the cup of coffee is not a closed system, the second law of...
Aug19-14 05:12 PM
1 1,346
Fantastic infographic!
Aug19-14 02:43 AM
20 7,160
Swarm Data: Earth's Magnetic Field is Weakening 10 times Faster than Recent Past. Why? ...
Aug16-14 10:26 AM
3 3,532
Hello everyone! my question is why the ice of Antarctica and arctic, it is made of sweet/fresh water,even though it...
Aug9-14 08:11 AM
9 3,030
why gravity on earth is very strong on the north atlantic ocean? ok, obviously where there is thick crust like...
Aug8-14 06:46 PM
jim hardy
7 4,181
in the sources I read the they are in the central europe or sometimes south central. But on the other hand Germany is...
Aug7-14 01:18 AM
4 1,972
I've never really studied clouds or the movements of clouds or paid any attention to the science that I was taught in...
Aug4-14 08:52 AM
19 4,844
The reason: I live in a small waterside town and we are very concerned over our water table. The problem is...
Jul30-14 03:48 PM
4 1,945
What features of our Earth amaze you the most? They can be natural wonders, science phenomenons, landforms, etc. Share...
Jul29-14 01:14 PM
14 2,697
A region of Venezuela has a high incidence of recurrent thunderstorm activity. It is apparently a unique set of...
Jul28-14 12:48 AM
2 2,144
Jul27-14 09:08 PM
11 4,615
Hi. Just a idea wondering around my brain today. I live near volcanoes, some have secondary activity (which is...
Jul20-14 10:24 PM
1 2,193
If given the decibels from the thunder and the distance away the lightning struck, would it be possible to tell the...
Jul20-14 06:22 PM
2 2,073
An unusual crater has been discovered on the Yamal peninsula in Siberia. ...
Jul19-14 07:34 PM
jim hardy
3 2,043
Just wondering if it's true when people say we will be out of oil in 50 years. If so are there plans to what's gonna...
Jul18-14 06:50 PM
37 7,840
I was googling to see if a bomb could disrupt a tornado and I came across this thread here (...
Jul9-14 06:23 PM
23 11,622
Somehow I managed to miss an anniversary from my childhood: It was 45 years ago last Sunday that the Cuyahoga River...
Jul8-14 01:23 AM
Trucker Mark
2 4,357
In Science 4 July 2014, there is an item that I saw summarised online: Injection wells blamed in Oklahoma...
Jul6-14 04:29 AM
26 6,904
I've heard that the earths magnetic field protects us from radiation but am curious as to how this works. I assume...
Jul4-14 06:03 PM
4 3,390
My current understanding is that civilization is built on fossil fuels, and the resulting emissions cause climate...
Jun25-14 08:19 PM
2 3,626
The IPCC uses a figure 1.2C for the direct response to a doubling of CO2, from 280 ppm to 560 ppm....
Jun24-14 05:55 PM
5 3,681
OK so we all know that seismic waves decrease in amplitude at about 1/r, the decay is slower than P and S-waves but...
Jun23-14 06:58 PM
8 2,956
Not sure if I should post this question here or in the Materials & Chemical Engineering forum but I will give it a...
Jun22-14 09:32 AM
3 3,366
The question is whether it's theoretically possible to tap this source for human use? ...
Jun17-14 11:57 PM
4 3,769
If one digs a well near the ocean can the sand filter the salt out of ocean water? If so how far inland would one have...
Jun17-14 03:06 PM
james marple
9 4,645
I have just had a trip up Mt. Etna (Sicily). A brilliant trip but it raised a question. There are large patches of...
Jun12-14 07:35 PM
9 3,401
I have an idea for you on defusing or dissipating tornados. I thought that a sufficiently large explosion at the...
Jun12-14 10:30 AM
38 25,209

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