Science For Free

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تیر

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Loading A text along with a picture using AJAX

برای لود کردن متنی از یک صفحه مجزا به داخل یک تگ دیو داخل وبسایت تاپیکی توی سایت

Stackoverflow

ایجاد کردم که میتونید از این لینک ببینیدش:

http://stackoverflow.com/questions/17193233/loading-a-text-along-with-a-picture-using-ajax/17194014#17194014

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۱۱ تیر ۹۲ ، ۲۱:۱۳

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تیر

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بهترین آنتی ویروس مجانی- BitDefender

سلام

حدوداً دو سالی بود که از آنتی ویروس اوست (Avast) نسخه مجانیش استفاده می کردم. بد نبود. بیشتر به خاطر اینکه اولا خودش رو اتوماتیک آپدیت می کرد ازش استقبال کردم. ولی حدوداً چند ماهی هست که تو ارتباط با سرور آپدیت مشکل داره.

من دنبال یه نرم افزار آنتی ویروس گشتم که سبک و قدرتمند باشه. ابتدا Ad-Aware Free Edition رو نصب کردم و آپدیت اتوماتیک داشت ولی خیلی سنگین بود و به نظر می رسید خیلی هم قوی نیست چون میشد به سادگی از Taskmanager اون رو بست.

...تا اینکه با گشتن تو سایت BitDefender متوجه شدم این شرکت یه ویرایش free از نرم افزارش داره که به گفته سایتش تو فوریه 2013 بهترین آنتی ویروس شناخته شده. نمودار زیر رو از سایتش گرفتم:

الان بیش از دو هفته اس که نصبش کردم. دیگه از اخطارهای تبلیغاتی و مزاحم و بزرگ خبری نیست. خیلی سبکه و در ضمن اتوماتیک آپدیت هم میشه. نیاز به سریال یا چیز دیگری هم نیست چون خوب مجانیه دیگه!!!!

سایت دانلود این نرم افزار از سایتش: http://www.bitdefender.com/solutions/free.html

(توجه: ابتدا یه فایل سبک دانلود میشه و بعد شروع میکنه به نصب به صورت آنلاین- [Online [Installer که اگه اینترنت پرسرعت داشته باشید فکر کنم حداکثر نیم ساعت طول بکشه)

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۰۲ تیر ۹۲ ، ۱۵:۲۶

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خرداد

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Changing Morality of the Modern Century

کتابی جالب به دستم رسید با عنوان «بعد گم شده در سکس». بخشی از اون رو براتون می نویسم فکر کنم براتون جالب باشه. از نظراتتون خوشحال میشم.منبع کتاب رو آخرش می نویسم.

But Now, What a Surprise for the Under-Thirties!

The young people of today have little awareness of the sex and family conditions in pre-war years. In fact, until 1914 there had been little basic change for some 4,000 years! The prior to 1914 years were as different from today's world as day is from night!

Parents then, even as now, taught their children nothing about sex. They themselves knew nothing! Their parents never had taught them! Besides, it would have been too embarrassing! The commonly accepted dictum was, "Keep our children innocent through ignorance until marriage- then instinct will teach them."

But instinct did not teach them. Humans, unlike animals, do not come equipped with instinct. Blindly, with a smattering of gutter-acquired misknowledge, the newly married blundered their way into disillusionments, shattered dreams, bitter resentments and frustrations- and, too often the divorce courts, although divorces were still a rarity.

True, a very large percentage of girls were kept "pure". The girl, up until 1914, who lost their virginity unmarried had also "lost her honor". Of course a double standard had developed. Every man wanted a virgin for a wife, but a majority were less careful about male virtue. yet the girl who had "gone the limit" was "damaged goods".

Those under thirty today know little about prevailing attitudes and sexual behavior prior to the two world wars. Contrariwise, if a girl who died at age twenty-two prior to 1917 were resurrected suddenly back to life today, she would be appalled!-- horrified!-- at the prevailing attitude and behavior of twenty-two-year-old girls today!

Just what are the generally unrealized FACTS? What was the real origin of the then traditional Christian morality?

And conversely, what triggered the moral revolution-- the so-called "New Morality"? How did TODAY's moderns come to accept present attitudes and behavior patterns? What has finally, after thousands of years of the "sex is shameful" repression, plunged the world into prevalent sexual "freedoms"?

And what, after all, is the PLAIN TRUTH? What, after all, are the TRUE VALUES? Was the pre-World War concept better for humanity? Is the present "New Morality" really advancement-- really better for those who are swept along with it?

People who lived prior to the 20th century would be aghast if they could see life as it is lived today.

Up until World War I people believed in marriage and family life. My own family was typical. I had never known of a divorce or a broken home and family in any of my relatives or ancestors. Marriage was "until death do us part". Any other status or life-style would have been strange and shocking.

But what brought this drastic change?

W. Armstrong, Herbert, The Missing Dimension In Sex,pp xiv-xv, 1981, Church of God, USA

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خرداد

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نرم افزار نظارت بر ترافیک اینترنت در کامپیوتر

سلام

امروز میخوام یه نرم افزار خیلی مفید و ساده معرفی کنم که خودم بیش از یک ساله ازش استفاده می کنم.

این نرم افزار توی Taskbar فعال می شه و هر آن سرعت ورود و خروج دیتا به/از کامپیوتر شما رو نشون میده.

توصیه مهم:
نصب و استفاده از این نرم افزار برای کسانی که از جاسوسی از سیستمشون نگران هستند توصیه می شه چون اگه کسی بخواد مخفیانه فایل های شما رو از طریق شبکه سرقت کنه زود متوجه می شید. بارها برای خودم اتفاق افتاده.

لینک وب سایت نرم افزار:

http://www.floriangilles.com

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مدیر سایت

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ارديبهشت

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finding biggest prime factor

Check out the following question:

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Prime factors of 40 are 2,5.

Find the biggest prime factor of 600851475143.

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I wrote the following code in C but it does not work. Please share your ideas.

/* Program To calculate largest prime factor of 600851475143
*    working simultaneously with long and double types is hard. this number
*     doesn't fit in a long type variable. so we have to take another measure.
*     maybe creating prime numbers and storing them in an array will be better.
*/

#include<stdio.h>
#include<math.h>

int IsPrime(unsigned long num)
{
    int index;
    int count=0; /* num itself and number One is not counted, so count==0 after loop determines answer*/
    /* index from num/2 because a numbers factors are not bigger than its half*/
    for(index=sqrt(num);index>1;index--)
        if(num%index==0) count++;
    return count==0?1:0;
}



int main()
{
    const double LargeNum=600851475143;
    int largestPrimeFactor;
    unsigned long i;
    printf("LargeNum: %f",LargeNum);
    /* double sqrtLargeNum=sqrt(LargeNum);
    printf("sqrt: %f\n",sqrtLargeNum);
    */
    printf("long i: %u",i);
    for(i=LargeNum/2;i>1;i--)
//        if(LargeNum%i==0) /* Is i a factor? */
            if(IsPrime(i)){     /* Is i a prime? */
                largestPrimeFactor=i;
                break;
            }


    printf("Largest Prime Factor: %d\n",largestPrimeFactor);


    return 0;
}