If the air temperature outside of the hot air balloon and the air inside the hot air balloon are the same, will that balloon still rise or just remain at the same point. This is not to say both temperatures are cold. Both temps should be hot. Hot enough for the air to rise, but if the outside and inside are equal in the heat, will that big a/s/s balloon move or just stay in the same spot. I think this would be difficult to try because a hot air balloon is very large and to heat all the surronding air around it might be next to impossible. This only applies to hot air. Not other types of gasses lighter than air, were temp wont affect lift dramatically. The reasonig for this question is for exploration on other planets with hot air temps, would this type of situation work using only air? And would it be possible to control it?
A balloon filled with hot air rises because of the force of buoyancy. That means the density of air inside is lesser than the surrounding air (because hot air expands thus density decreases) and thus there is an upthrust acting on the balloon. Now, if the surrounding air is at the same temperature then its density is same as that inside the balloon and so the balloon will not rise. But the balloon will not not remain at the same point. it will fall because of the weight of the rubber in it.
In case of exploration on other planets, firstly other planets have very low density of air in the atmosphere (most of them do not have any air) and secondly even then is one wants to use this one has to heat up the balloon to a temperature for which the density decreass lower than the surrounding. Hope this answers your question.
There is a world of difference – which is the timing when you actually pay for the goods. For a credit card, you are actually borrowing money made available from a bank. When you swipe your card, your credit limit given by the bank decreases and the bank in turn pays the amount of money to the merchant when they make a claim. At the end of each billing cycle, the bank bills you the total amount you have
A friend of mine (teenager
I have heard that it is mean to the animal but every now and then he swats a little close ot my baby
First of all, if you haven’t already picked out a school, make a list of a few that you want to observe. I would go and observe each program for about an hour and watch without your child so you can get a good observation. Ask yourself some questions.
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Simply press Shift Print Scrn. Press Alt Print Scrn to get just a shot of the window you have open.
Then paste that image into some other program, like Word or Paint or whatever you need to use it in.
I like Photography, Museums and Dance/Elec Music
A few things I would say are not to be missed:
Blue Man Group at the Astor Place Theatre, 434 Lafayette Street: http://www.blueman.com/ticketinfo/nyc/in
Scientific answers only please!
Because when the stomach is hungry, secretion is going on of various gastric juices and digestive hormones. Because of its effect, the nerves supplying the stomach and the intestinal area are stimulated. They convey a message to the brain. The brain also sends back signals in form of neuronal impulse. These impulses contract the gastric and intestinal muscles and there occurs a rhythmic propelling muscular contraction which is also known as peristalsis. Sometimes the peristalsis are so strong that you can feel that noise outside. Peristalsis occur everytime but basically they are the contractions to propel the food. So they are of maximum strength after 1-2 hours of eating.
My pearl tiel flew out the door in November. I am still searching for her. Is there any hope of finding her?
it is very difficult – the more time that passes the harder it can become to find the bird – like the other answers have said, contacting local police and animal control to alert them is a start. putting up fliers around the neighborhood is also good.
finally, there is one more thing i would try – if you have a deck or a window the bird used to look out of , place their favorite toy or treat on that window or deck
In many tribal societies, the elderly were seen as a source of wisdom and were treasured by their society. Looks were unimportant. In our own society now, youth and beauty are worshipped far above age and wisdom. What happened? When did the shift occur?
My educated guess would be that it started in the early 20th century, and more specifically right after WWI, which gave birth to the fads and fashions of the 1920s.
Before that, youth and beauty were almost always used as a symbol for innocence. Even as late as the Victorian Era, young beautiful people, especially women, are a symbol of innocence, both about the ways of the world, and about harsher realities, such as disease and malnutrition. Their innocence is depicted as a kind of beauty in itself, and one that is all the more precious because it will undoubtedly fade very soon.
The post-WWI era is the first time that I have ever seen where there was a definite shift toward maintaining youth. For example, it
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