Hematite Quartz

Steve Jobs demoes  NeXT’s capacity in a TV report (1988)

Actual advice on how to study for engineering courses from a first year student

Okay so I just finished my first semester in university and lets just say I’ve got to change my whole learning/studying style to be able to survive here. Here are some of the things I’ve learnt to do and will be doing in second semester:

1. Start backwards:

 I highschool, you try to learn the subject by going to class, listening to the teacher, then going home, reading the textbook, then doing the homework, then making notes, then studying for the final. In engineering, you have to do this backwards: You will realize that you are going to be basically teaching yourself the content one way or another soon before the finals, so better start now. First, go through the past exams and past papers - make a list of all the major topics covered (example: if in an electrical circuits course, a question on a past final exam is “find the equivalent circuit using thevenin’s theorem” then write Thevenin’s theorem as a topic to be learned). Then go on youtube and find videos that explain each of these topics to you and make rough notes on these topics. (Reblog if you want me to make a master list of all the youtubers that teach engineering really well). Then go through he textbook and find sample questions not he theorem/topic you learnt off of youtube, and solve them. Then write your doubts in a notebook. Then go to class and have two notebooks open : one where you are taking notes of what the prof is saying, and one which has your practice problems solved, and see if the prof clarifies your doubts in the lecture. The lecture should be review of what you learnt at home!!!! Then, after class go to the prof and clarify any doubts. Then go home and make final notes on the topic. I like to make notes on cue cards (more on this later). Then go back to the final exam and see if you can solve the problem.

2. Make cue cards:

I like to get index cards and write a short note on how to solve each type of question I am likely to see on a final exam on each question card. Example: one cue card for “how to find resistance using wheatstone bridge” . I link the cue cards with a clip and its easier to carry the around and study.

3. Get pretty notebooks and organize your stationary. Its easier to stay focused when everything is pretty. 

COMPUTER SCIENCE

The computer has been very useful to us since the very beggining of its time. It helps make work faster and easier. It is a programable machine which receives and stores data to make an output.

The First Programmable Computer

Originally named the Z1 began development in 1936 by Germany’s Konrad Zuse in his parents living room and today is considered the first electrical binary programmable computer. The Z1 had 64-word memory (each word contained 22 bits) and a clock speed of 1Hz. To program the the Z1 required that the user insert punch tape into a punch tape reader and all output was also generated through punch tape.

The First Portable Computer (laptop)

The first truly portable computer or laptop is considered to be the Osborne I, which was released on April 1981. The Osborne I was developed by Adam Osborne and weighed 24 pounds, had a 5-inch display, 64 KB of memory, two 5 1/4” floppy drives, and a modem.

Colors of Jupiter

8.10.2016 // 13/100 Days of Productivity// Now that I’m on vacation again, I finally found some time to invest into my favourite notebook. On another note, thanks for 900 followers! Have a nice day!☀️

A telephoto view of the Orion nebula and surrounding region over a Saskatchewan tree [OC]

Spyro The Dragon! - PS1 (1998) ↳ Game Pause Menu.

Planetary Comparison No. 1 Looks like Earth, Venus, Mars, Mercury and the Moon #hubble #space #planet #universe #nasa #astronomy #galaxy #milkyway #spacephotography #astronomyart #astrophotography #photo #night #cosmos #universe #nightsky #FriendofTrodLightly — view on Instagram http://ift.tt/2IwEqyx

Not Only Didn’t We Find Water On An Earth-Like Exoplanet, But We Can’t With Current Technology

“Over the past few decades, astronomers have uncovered thousands of new exoplanets. Some of them are rocky; some are temperate; some have water. However, the idea that exoplanet K2-18b is rocky, Earth-like, and has liquid water is absurd, despite recent headlines. Light filters through K2-18b’s atmosphere when it passes in front of its star, enabling us to measure what’s absorbed. Based on those absorption lines, the presence of many chemicals can be inferred, including water. K2-18b is, truly, the first known habitable-zone exoplanet to contain water. However, it is not rocky; its mass and radius are too large, necessitating a large gas envelope around it.”

How incredible was that report that came out last week: the first Earth-like, rocky exoplanet with liquid water on its surface has been discovered! If it were true, it would be incredible. Well, what we did find is still pretty remarkable, but it’s very different from what you’ve likely heard.

We did find water on the exoplanet in question, K2-18b, but only in the vapor phase and only in the atmosphere.

The exoplanet is closer to Earth in terms of mass and radius than any other with water on it, but the planet is still too massive and large to be rocky. It must have an envelope of hydrogen and helium, and both have had their presence detected.

If we want to find atmospheric biosignatures around Earth-like worlds, we need better observatories. Let’s build them! Here’s the real story.