lecture

یکی از سخت ترین چیزهایی که منو همیشه درگیر خودش می کنه پیدا کردن یه موضوع یا یه متن واسه لکچر،البته اگه بهترین موضوع لکچر هم داشته باشی و خوب و بااعتماد به نفس نتونی توضیح بدی هیچ فایده ای نداره و یه چیز دیگه که معلممون همش به ما میگه این که لکچرتون رو حفظ نکنید چون اگه حتی یه کلمه هم یادتون بره به قول خودش بوممممم... به نظر من که درست هم میگه بهتر چند بار از روی متن لکچر ها خوند و یاد گرفت.

تو ادامه مطلب واستون یه لکچر گذاشتم درباره نجوم در ضمن اینو از کتاب بک پک گرفتم واسه من که خیلی جالب بود امیدوارم شما هم خوشتون بیاد

astronomical info

Hubble trouble

The hubble space telescope designed in the 1970s and send in to space in 1990s,has change our understanding of the universe. But how can a telescope continue function after years in space

The hubble was especially designed so that astronauts could take out old and broken equipment and put in new instruments whit the latest technology, each new space of equipment increases the telescopes scientific power

Why cant I look directly at an eclipse of the sun after all the sun is covered of

A solar eclipse is a beautiful and exciting thing to see , but it can be very dangerous. Never look at the eclipse with the naked eye. Why? your eye has a lens just like a camera does .the lens focus the suns light on your retina(the area at the back of your eye that receives light and sends an image of what you see to your brain). This concentrated light can cause blindness. The retina does not feel pain, so you don’t even know when you are burning your eyes

Supernovas

Supernovas are enormous exploding stars. The lights of supernovas can be brighter than the light of million of stars in a galaxy. In fact in 10 seconds a Supernova uses much more energy than our sun will use in the whole life

Some Supernovas collapase in on themselves. A collapsed Supernova is called a black hole. Because of gravity, anything that falls into a black hole cannot get out , not even light. If you fell into a black hole, you would stretch out like a very long piece of spaghetti before you disappeared

lecture

مطالب مشابه :

lecture

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