گروه شیمی منطقه 12تهران
اخبار و اطلاعات و تاز ه ها از گروه شیمی منطقه 12 تهران
چهارشنبه 20 دی 1391

آیا می دانستید که:

چهارشنبه 20 دی 1391

نوع مطلب :
نویسنده :

-آیا میدانستید که تقریبا 300 متر مكعب گاز هلیم میتواند یك انسان را از روی زمین بلند كند.
- آیا میدانستید که ظروف پلاستیكی تقریبا پنجاه هزار سال در برابر تجزیه و فساد مقاومند.
- با 30 گرم طلا نخی به طول 81 k/m می توان درست کرد .

- آیا میدانستید که شیشه در ظاهر جامد به نظر میرسدولی در واقع مایعی است كه بسیار كند حركت میكند.
- ایا می دانستید ایا میدانستید درجه حرارت بالاترین قسمت یك شعله به 1540 درجه میرسد در حالی كه پایین ترین قسمت ان فقط 300درجه حرارت دارد
- ایا میدانستید كه چرا وقتی یك سیب گندیده را در بین سیب های سالم قرار میدهیم بقیه سیب ها هم میگندند.دلیل این است كه سیب گندیده یك نوع گاز ﴿ethylene) از خودش انتشار میدهد كه باعث گندیدن بقیه سیب ها میشود.
- ایا میدانستید كه لایه ازن فقط به اندازه دو سكه بروی هم كلفتی دارد.
- چرا اب دریا شور است؟
قسمتی از نمك موجود در اب دریا از طریق فعالیت های اتشفشانی زیر ابی وارد ان میشود اما قسمت اعظم این نمك مربوط به فرسایش پوسته زمین یا خاك است. املاح معدنی موجود در خاك در اب باران حل میشود و از طریق رودخانه ها به دریاها حمل میگردد.انگاه زمانی كه بر اثر تابش نور خورشید قسمتی از اب دریا بخار میشود نمكی كه در ان وجود دارد بر جای باقی میماند و این امر باعث میگردد كه تراكم نمك موجود در اب افزایش یابد.امروزه میزان املاح معدنی موجود در اب دریاهای ازاد جهان 3.5 در صد استكه بیشتر انرا سدیم كلراید یا همان نمك طعام ﴿CINa) تشكیل میدهد

- یكی از حقایق اصلی زندگی روزمره ان است كه اب و روغن با هم در نمی امیزند.بیشتر ادویه جات تند از نطر ساختار شیمیایی ﴿﴿روغن پایه﴾﴾ میباشد.بنابراین نوشیدن اب بروی دهانی كه بر اثر خوردن فلفل یا ادویه تند به سوزش افتاد بیحاصل است.بهترین راه حل برای بر طرف كردن تندی از دهان خوردن چیزی است كه چربی را به خور جذب كند و در این بین نان یا هر چیزی كه نشاسته داشته باشد و در دسترس باشد نتیجه خوبی بدست میدهد.راه حل دیگر بعد از خوردن نان نوشیدن شیر است. هر چند كه شیر از لحاظ ساختار ﴿اب پایه﴾﴾ است اما دارای ماده ای شبیه به پاك كننده ﴿detergent) است كه مانند صابون با روغن با چربی در میامیزد و انرا میشوید و می برد .

- ایا میدانستید اشعه X از بلور الماس عبور نمی‌كند و منعكس می‌شود از این خاصیت می‌توان در تشخیص الماس حقیقی از نوع بدل آن استفاده نمود.




sublimated
یکشنبه 3 شهریور 1398 05:12 ب.ظ
Touche. Outstanding arguments. Keep up the great spirit.
해외축구중계
یکشنبه 3 شهریور 1398 02:19 ب.ظ
I've learn some just right stuff here. Definitely worth bookmarking for revisiting.
I surprise how much attempt you place to make this sort of magnificent informative site.
informasi website poker online indonesia
یکشنبه 3 شهریور 1398 04:03 ق.ظ
It iss among the largest poker sites on the internet and is
traditionally used by both new and experienced players.
The second bill was enacted but only extended the implementation until June
1, 2010. Typically, you are able to estimate this by
assuming the past blid reached will likely be about one-tenth of the total chips in play.
https://westsidepizza.breakawayiris.com/Activity-Feed/userId/1155826
شنبه 2 شهریور 1398 05:56 ب.ظ
1. My Singing Monsters Major Blue Bubble Inc.
Josh Bradley
شنبه 2 شهریور 1398 02:53 ق.ظ
Josh Bradley
best cbd gummies
جمعه 1 شهریور 1398 11:10 ب.ظ
You need to be a part of a contest for one of the greatest websites
on the web. I am going to highly recommend this website!
Adult Personals
جمعه 1 شهریور 1398 03:20 ب.ظ
I feel this is among the such a lot important info for me.

And i'm satisfied reading your article. However want to
statement on few normal things, The site style
is perfect, the articles is truly excellent : D.
Just right activity, cheers
Adult Dating Websites
جمعه 1 شهریور 1398 02:35 ب.ظ
Write more, thats all I have to say. Literally, it seems as though you relied on the video to
make your point. You clearly know what youre talking about, why waste your intelligence on just posting videos to your weblog
when you could be giving us something informative
to read?
Latina Adult Dating
جمعه 1 شهریور 1398 11:45 ق.ظ
Normally I don't learn post on blogs, however I wish to
say that this write-up very pressured me to take a look at and do it!
Your writing style has been surprised me. Thank you, quite nice article.
fred-lalyr-photographe.fr
پنجشنبه 31 مرداد 1398 12:39 ب.ظ
I blog frequently and I really appreciate your information. The article has really peaked my interest.
I am going to book mark your website and keep checking for new details
about once a week. I subscribed to your RSS feed
as well.
Nail Shop near me
چهارشنبه 30 مرداد 1398 08:38 ب.ظ
This info is invaluable. Where can I find out more?
sex video
چهارشنبه 30 مرداد 1398 03:49 ب.ظ
If you are going for best contents like myself, only go to see this
website everyday because it offers feature contents, thanks
بهترین آژانس هواپیمایی
چهارشنبه 30 مرداد 1398 11:08 ق.ظ
ایران زیبای من

کلیپی زیبا و فوق العاده از نمک آبرود

لینک عضویت


خرید اینترنتی بلیط هواپیما -رزرو… …
shipping document envelopes
چهارشنبه 30 مرداد 1398 09:49 ق.ظ
Paragraph writing is also a excitement, if you be familiar with afterward you can write if not it is complex to write.
토토사이트
سه شنبه 29 مرداد 1398 07:00 ب.ظ
I'm now not positive the place you're getting your
info, but good topic. I must spend a while learning much more or
working out more. Thank you for excellent info I used
to be on the lookout for this information for my mission.
사설토토사이트
سه شنبه 29 مرداد 1398 06:36 ب.ظ
I must thank you for the efforts you've put in penning this site.
I really hope to see the same high-grade blog posts from you later on as well.
In truth, your creative writing abilities has motivated me to get my own site now ;)
사설토토사이트
سه شنبه 29 مرداد 1398 02:41 ب.ظ
Hello there, just became aware of your blog through Google, and found that it is truly informative.
I'm gonna watch out for brussels. I will be grateful if you continue this in future.

Many people will be benefited from your writing. Cheers!
http://bbs.dianzishu.com/
سه شنبه 29 مرداد 1398 05:01 ق.ظ
Coin Master is an EPIC social and interactive game.
Sherrill
یکشنبه 27 مرداد 1398 10:59 ب.ظ
I'm extremely impressed with your writing
skills and also with the layout on your blog. Is this a paid theme or did you customize it yourself?
Anyway keep up the excellent quality writing, it's rare to see a great blog like this one
nowadays.
wrongfuelrectification
یکشنبه 27 مرداد 1398 03:14 ب.ظ
magnificent issues altogether, you simply gained a new reader.
What might you suggest in regards to your put up that you
just made a few days ago? Any positive?
cara daftar togel online
یکشنبه 27 مرداد 1398 10:08 ق.ظ
Thank you for the auspicious writeup. It in fact was a amusement account it.
Look advanced to more added agreeable from you! By the way, how could we communicate?
artificial turf melbourne
یکشنبه 27 مرداد 1398 08:12 ق.ظ
Hi friends, pleasant paragraph and pleasant urging commented at this place,
I am in fact enjoying by these.
zalgiris
جمعه 25 مرداد 1398 09:23 ب.ظ
It's very effortless to find out any topic on net as compared to textbooks,
as I found this paragraph at this website.
Duane
جمعه 25 مرداد 1398 03:40 ب.ظ
It's hard to find educated people about this subject, however,
you sound like you know what you're talking about!
Thanks
interesting local people
جمعه 25 مرداد 1398 01:58 ب.ظ
I am genuinely delighted to glance at this website posts which includes lots
of useful information, thanks for providing such data.
Local Golf Scrambles
جمعه 25 مرداد 1398 01:31 ب.ظ
We are a group of volunteers and opening a new scheme in our community.
Your web site provided us with valuable information to work on. You've done a formidable job and our
whole community will be thankful to you.
tonneau covers essentially
پنجشنبه 24 مرداد 1398 09:01 ق.ظ
Hi there! I'm at work browsing your blog from my new
iphone 4! Just wanted to say I love reading through your blog and look forward to all your posts!
Keep up the outstanding work!
excellent cheap
پنجشنبه 24 مرداد 1398 08:14 ق.ظ
I love your blog.. very nice colors & theme.
Did you design this website yourself or did you hire someone to do it for you?
Plz respond as I'm looking to design my own blog and would
like to find out where u got this from. thank you
guitar style
پنجشنبه 24 مرداد 1398 02:21 ق.ظ
My brother suggested I might like this website. He was entirely right.
This post truly made my day. You can not imagine just how much time I had spent for this information! Thanks!
토토사이트
چهارشنبه 23 مرداد 1398 04:57 ب.ظ
Excellent goods from you, man. I've understand your stuff previous to and you are just too magnificent.
I actually like what you have acquired here, certainly like what you are saying and the way in which you say it.
You make it enjoyable and you still care for to keep it wise.
I can not wait to read much more from you. This is really a wonderful
website.
 
لبخندناراحتچشمک
نیشخندبغلسوال
قلبخجالتزبان
ماچتعجبعصبانی
عینکشیطانگریه
خندهقهقههخداحافظ
سبزقهرهورا
دستگلتفکر
نمایش نظرات 31 تا 60