Weather Definition and 178 Threads

Hi all, I have photometry from a number of sources with only very sparse details about the observing conditions at the time. The only information I have is the date, the filter and the longitude & latitude of the observer. Is there any program or website on which one can enter any...

Let's say we have a symmetrical weather wane that's free to rotate about its vertical axis, and a uniform fluid flows in some horizontal direction d. Then, I assume, the wane will align itself parallel to d, but why? Is there a simple argument or does one have to carry out a numerical simulation...

GeorginaS Greg Bernhardt https://www.physicsforums.com/misc/swiss.jpg colonelcrayon http://img11.imageshack.us/img11/62/1070768.jpg ZapperZ Andre Marzena Borek edward http://img199.imageshack.us/img199/333/stormr.jpg moose I'm afraid Ben's had to be disqualified...

Does anyone know if there is any correlation between these two?I mean most of the times during El Nino events the weather here in Europe gets ''crazy'' but till now i haven't seen any formal scientific survey which describes it with certainty. Now with the new El Nino being formed what kind of...

[SIZE="5"]Stormy Weather Here is a very broad easily interpreted topic. :smile: Contest Rules: 1. Any digital photo or digitally-scanned photo relevant to the theme will be accepted within the contest period. In case there's a gray area, or you're not sure if the picture is suitable, check...

Homework Statement A weather balloon is designed to expand to a maximum radius of 30 m when in flight at its working altitude where the air pressure is 0.033 atm and the temperature is 95 K. If the balloon is filled at atmospheric pres- sure and 462 K, what is its radius at lift-off...

1. A weather balloon travels upward for 6 km while the wind blows it 10 km north and 8 km east. Approximately what is its final displacement from its intial position? I am not sure how to look at this. I know they are vectors which makes this a bit complicated and I know I have to use...

Lost please help! A 1974 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 20.27 s, then the motor stops. The rocket altitude 23.94 s after launch is 7242. You can ignore any effects of air resistance. What was the rocket's acceleration during...

Homework Statement An Airplane is traveling at 225 m/s when it strikes a weather balloon (m=1.82 kg) which can be considered to..? be at the rest relative to the ground below. After the collision, the balloon is caught on the fuselage and is traveling with the airplane. The collision takes...

1. Do you own a dog? 2. Is your dog ever in cold weather? 3. Does he have a doghouse with a heat generator? 4. Is your dog outside for extended periods of time?

Dose the cosmic rays have any roll in our weather This question hits me yesterday when I was studying the electric charge and its roll in the weather , so dose the cosmic rays have any roll or its roll is just negligible…. when they hit our atmosphere

I just got back from Cali, yesterday, and it was wonderful to be there and meet so many nice people. The weather was awesome, way better than the -20 we had here. They had a nice record high of like 87 the other day. I was glad to be able to experience it. Everyone seemed so nice and friendly to...

Right now it's a bit chilly in the upper midwest (-21 degrees this morning at 6:00 am; -23 degrees predicted for tonight). When walking our dog this afternoon, my wife and I noticed that the snow underfoot squeaked louder that usual. We observe that snow makes a qualitatively different sound...

Multiple choice again :-) 1. Brewnog 2. Edward http://img224.imageshack.us/img224/8692/scan500050050001jpgsnowvo4.jpg 3. Hypatia http://i82.photobucket.com/albums/j269/hypatia3811/rocks.jpg 4. Integral 5. Christina...

[SIZE="6"]Winter weather The weather here has been foul lately. Show me some winter weather. That's not exclusively snow and ice. Whatever characterises the weather at this time of year where the photo was taken. [SIZE="4"]Contest Rules: 1. Any digital photo or digitally-scanned photo...

http://www.sciencedaily.com/releases/2008/12/081202081449.htm ScienceDaily (Dec. 3, 2008) — The sun’s magnetic field may have a significant impact on weather and climatic parameters in Australia and other countries in the northern and southern hemispheres. According to a study in Geographical...

Any help would be greatly appreciated. I'm doing physics through correspondents, so I have nobody to explain this kind of thing to me. Homework Statement The instruments attached to a weather balloon have a mass of 5.0kg. a) The balloon is released and exerts an upward force of 98 N on...

Today's weather in Seattle is amazing! Can anyone currently living in Seattle give me an idea as to how often these type days (few or no clouds, nice blue sky, moderate temps), occur in the East Bay part of the San Francisco metro area? I am considering a move to that area because of a job...

The weather is dreadful here. It rains on three times as many days as there are rain-free days. Luckily the daily weather forecast is fairly good. Whether the forecast is for rain or for no rain, it is correct on nine occasions out of ten. What is the probability that the weather forecast...

I have heard people talk about "earthquake weather" and we had weird weather today. Hazy and very hot with warm winds. The weather website said it was 90 degrees F at sundown. This was copied from another thread where Math Is Hard experienced an earthquake while making a post - Ivan...

Can it be said that some form of weather manipulation works? China seems to have had some success, http://news.slashdot.org/article.pl?sid=08/08/10/020213&from=rss Even if some form works is it worth the effort, are we just moving a (problem) to another location.

An article from the Globe and Mail, the 37 million dollar Canadian space station onboard phoenix reports its first weather readings. If your planning on traveling to Mars for a spring getaway I suggest you pack your winter clothing. "Mars weather forecast: Clear skies, high of -30 ANNE...

How does thermodynamics apply to the weather?

I was just watching the weather news. They showed the last six years of weather on May 2-4 Mondays: Sun, rain, sun, rain, sun, rain. So, they say, next year, expect sun. Idiots. People will trust this. Flip a coin 6 times: heads, tails, heads, tails, heads, tails. What can you expect...

Recently I was helping a friend of mine nail sheets of felt on a roof, and we finished applying the felt in the afternoon when it was warm. We came back the next morning to nail the shingles on the roof, and the felt was bubbled up. It about 20 degrees colder that morning than it was the...

Homework Statement A small rocket to gather weather data is launched straight up. Several seconds into the flight, its velocity is 120 m/s and it is accelerating at 18 m/s^2. At this instant, the rocket's mass is 48 kg and it is losing mass at the rate of .5 kg/s as it burns fuel. What is...

Why is there the possibility of a water pipe breaking if the pipe is left full of water during extended frigid weather?

So a storm is going to hit the UK on Monday, and i have seen various predictions to its severity, these vary from worst storm this year to worst storm in 100yrs, it will be interesting to see who is right, i hope it turns out to be a storm in a tea cup.

Many people consider the weather as a system which exhibits chaotic behaviors ('the butterfly effect' introduces weather as an example for chaos). But what are the reasons for that? Why are we so sure that weather is chaotic? Is it because people can't manage to predict it a long time in...

TV weather reporters with "appropriate" names? In Charlotte, the NBC station, WCNC, has a weatherman named Larry Sprinkle. I think the ideal candidate would be a woman named Reina Shine. :biggrin:

How come standing outside in cold weather makes my nose run? Thanks.

Why is it that cold wet weather makes joints stiff and ache, the actual temperature of the joint can not change much can it?

Need Help With Weather Homework Asap! Homework Statement why does warm air rise?? Homework Equations The Attempt at a Solution

I've heard about this a lot how the sun makes people happy and how cloudy and rainy days make people depressed. But I want to know if this is just a social myth or if there's any scientific grounding behind this?

A tropical storm is named if a storm has winds that exceed 39 MPH and it makes news. 39 MPH winds are really common here on the plains. We routinely have storms here with sustained winds of 60-70 MPH, but they don't get named and they don't make the news. Right now we have a storm with...

As we all know, core body temperature is around 98.6 degrees Farenheit. It is more comfortable for one to wear less clothing when the temperatures are in the 80s and 90s (since this allows core body heat to more easily disperse outside). But what if the temperatures are in the upper 90s and...

"launch a weather rocket" prbm Homework Statement A 1000 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 11 s, then the motor stops. The rocket altitude 15 s after launch is 4600 m. You can ignore any effects of air resistance. a) Acc. of...

Is there a long term trend for global weather change? if so then how will this effect traditional area crop growth?

http://news.yahoo.com/s/ap/20070505/ap_on_re_us/severe_weather Those in the midwest - from West Texas to Minnesota - need to watch out. I hope we don't see any more like this.

A balloon can be filled with 5.0 L of "He" w/o bursting. The balloon is filled 0.5 L at a pressure of 1 atm. The balloon rises and the pressure gets lower. At what pressure will the balloon burst? I tried a few of the gas laws but I think my answers are incorrect. How do you solve this?

How many other people are experiencing the great weather in the Northeast US? Honestly, it's great...hopefully it stays this way and spring settles in.:smile:

Does warm water rise or fall in cold weather? I think it falls Does it have to do with convection??

Could anybody say please, what change might occur in our current weather conditions, if the Earth rotated vertically, instead of the current angle of 22 1/2 degrees.

In my Precalcules class this month being the end of the school year our teacher told us that we have to do this project based on probability. And I was told to pick a topic that is an interest's me. I thougt this was going to be easy so I choose the weather predicting project. Our teacher told...

Who else is watching the tornados waltz by in the SE quadrant of the States? Over here we've had nice, mild weather up to now - light hail, supercells, lightning storms, minor flooding. Very relaxing. I'm going to find myself a snack. Anyone else in this 13-state region - remember, the safest...

The weather is absolutely beautiful outside today! Spring has arrived! :biggrin: Its so nice outside I had to make a thread to share it.

Here are a couple problems I would like to check and a couple I'm not sure how to do: 1.3)A 650kg weather balloon is designed to lift a 4600kg package. What volume should the balloon have after being inflated with helium at 0C and 1 atm pressure to lift the total load? Density of helium =...

how weather affect your height? does it have any role at all?

http://www.cbc.ca/story/canada/national/2005/12/06/police-051206.html WOW i had no idea people did stuff like this. i for one have always known what 911 is for, i don't know what's wrong with those other people.

An interesting story that relates to weather modification conspiracy theories. http://www.awra.us/gallery-jan05.htm