Author: Beascholor

What could be the fuel for traveling across the Universe?

Guys, we all be having the question, what could be the vehicle that could take us to the various planets, galaxies and universe.

You might wonder what a stupid question is that?! but hold it on, the most probable answer you may give can be the Rockets till when human haven’t found any suspicious vehicles like the flying saucers, many more. I told you to hold  for a while because here is a thing we all need to re-memorize that Several practical liquid oxidizers (liquid oxygen, nitrogen tetroxide, and hydrogen peroxide) , but with the usage of fuels, just for the travel to mars takes approximately 150 days provided your launch has the maximum speed, imagine what if you wanna go for some other galaxy how long can it take!!!

When it comes to the species from other galaxies, from the point when we were listening ,or some may even have experience in seeing we came to a conclusion that life existed in other galaxies and they are using flying saucer kind of stuff to travel from their home planet to earth. If that is true, How can that be possible, how they can come and go(disappear) soon?

To give a justification to a fact regarding the advanced technology of the other species in the various other planets or galaxies two Astrophysicists from Harvard University namely Avi Loeb and his co-author Manasvi Lingam proposed a thesis which gives the information regarding the fuel used in the probes of the species from the other galaxies.

According to them mysterious phenomena called fast radio bursts could be evidence of advanced alien technology.Specifically, these bursts might be leakage from planet-sized transmitters powering interstellar probes in distant galaxies.

2017-09

“Fast radio bursts are exceedingly bright given their short duration and origin at great distances, and we haven’t identified a possible natural source with any confidence,” said theorist Avi Loeb of the Harvard-Smithsonian Center for Astrophysics. “An artificial origin is worth contemplating and checking.”

As the name implies, fast radio bursts are millisecond-long flashes of radio emission. First discovered in 2007, fewer than two dozen have been detected by gigantic radio telescopes like the Parkes Observatory in Australia or the Arecibo Observatory in Puerto Rico. They are inferred to originate from distant galaxies, billions of light-years away.

Loeb and his co-author Manasvi Lingam (Harvard University) examined the feasibility of creating a radio transmitter strong enough for it to be detectable across such immense distances. They found that, if the transmitter were solar powered, the sunlight falling on an area of a planet twice the size of the Earth would be enough to generate the needed energy. Such a vast construction project is well beyond our technology, but within the realm of possibility according to the laws of physics.

The paper reporting this work has been accepted for publication in the Astrophysical Journal Letters and is available online.

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History of the Eye Glasses!!!!!

Guys, it won’t be a exaggeration if it is stated that almost every teen is expected to visit a eye specialist in order to have a check for their eyes for any kind of the problem in their vision. There may be many reasons for the defect in their eyes, but the most approached mode is getting spectacles based on the type of defect.

Have you ever wondered when,why,how and where does this usage of the spectacles began?!!!

people have been using magnification devices to assist with seeing things since at least  Roman times. Seneca the younger(c 4 BCE – 65 CE) allegedly used a glass globe filled with water in an attempt to magnify text in his later years. By 1000, reading stones, similar to what we know as magnifying glasses,were in use, though they were unwieldy and not wearable. Although it is not exactly clear who invented them, eyeglass existed by at least 1268, when English philosopher Roger Bacon first wrote about them.

Eyeglasses offered a practical, portable means of correcting vision. Early offered a practical means of vision. Early spectacles were made of from quartz lenses, but later advances in glass making allowed inventors to pair the optics with lighter frames that could be easily worn.

Johannes Kepler explained the vision as a process of refraction with in the eye. and that people with blurred vision had an optical defect which meant that people that light rays were focussed either in front or just behind their retina –a problem that lenses corrected by redirecting the light.
 
By the 1780s, Benjamin Franklin, a painter by trade, had created bifocals, allowing those with more than one vision problem to rely on a single set of glasses!!!

Mechanical Computer!!!!!!!

Guys, have you ever heard of this mechanical computer and the mechanical programmability. It is the automation of complicated instructions for machines.

The Z1 was a mechanical computer designed by Konrad Zuse from 1935 to 1936 and built by him from 1936 to 1938. It was a binary electrically driven mechanical calculator with limited programmability, reading instructions from punched celluloid film.

z1.jpg

The Z1 was the first freely programmable computer in the world which used Boolean logic and binary floating point numbers, however it was unreliable in operation.

It was completed in 1938 and financed completely from private funds. This computer was destroyed in the bombardment of Berlin in December 1943, during World War II, together with all construction plans.

The Z1 was the first in a series of computers that Zuse designed. Its original name was “V1” for VersuchsModell 1 (meaning Experimental Model 1). After WW2, it was renamed “Z1” to differentiate from the flying bombs designed by Robert Lusser.

Design:

The design of this mechanical computer was as follows:

z1 design

 

The Z2 and Z3 were follow-ups based on many of the same ideas as the Z1.

Construction:

“Z1 was a machine of about 1000 kg weight, which consisted from some 20000 parts. It was a programmable computer, based on binary floating point numbers and a binary switching system. It consisted completely of thin metal sheets, which Zuse and his friends produced using a jigsaw.””The [data] input device was a keyboard…The Z1’s programs (Zuse called them Rechenplans) were stored on punch tapes by means of an 8-bit code”

Construction of the Z1 was privately financed. Zuse got money from his parents, his sister Lieselotte, some students of the fraternity AV Motiv (cf. Helmut Schreyer) and Kurt Pannke (a calculating machines manufacturer in Berlin) to do so.

Zuse constructed the Z1 in his parents’ apartment; in fact, he was allowed to use the living room for his construction. In 1936, Zuse quit his job in airplane construction in order to build the Z1.

Zuse is said to have used “thin metal strips” and perhaps “metal cylinders” or glass plates to construct Z1. There were probably no commercial relays in it (although the Z3 is said to have used a few telephone relays). The only electrical unit was an electric motor to give the clock frequency of 1 Hz (cycle per second) to the machine.

‘The memory was constructed from thin strips of slotted metal and small pins, and proved faster, smaller, and more reliable, than relays. The Z2 used the mechanical memory of the Z1, but used relay-based arithmetic. The Z3 was experimentally built entirely of relays. The Z4 was the first attempt at a commercial computer, reverting to the faster and more economical mechanical slotted metal strip memory, with relay processing, of the Z2, but the war interrupted the Z4 development.’

Reconstruction:

The original Z1 was destroyed by the Allied air raids in 1943, but in 1986 Zuse decided to rebuild the machine. He constructed thousands of elements of the Z1 again, and finished rebuilding the device in 1989. The rebuilt Z1 (pictured) is displayed at the German Museum of Technology in Berlin.

 

9/11; A brutal attack and massacre in WTC!!!

Guys, have you remember the series of four coordinated terrorist attacks by the Islamic terrorist group al-Qaeda on the United States on the morning of Tuesday, September 11, 2001. The attacks killed 2,996 people, injured over 6,000 others, and caused at least $10 billion in property and infrastructure damage.
 
Those aboard the four hijacked flights — American 11, United 175, American 77 and United 93 — called family and friends from their cellphones or used the air crafts’ radio communications to report the hijackings. That alerted authorities to the hijackings and enabled them to understand why they could not track the planes after their navigation systems were turned off.
 
American 77, which departed Washington’s Dulles airport, was hijacked near Indianapolis and then turned back toward Washington. Its destination: the Pentagon. Passenger Barbara Olson, the wife of Solicitor General Ted Olson, called her husband to report “that the flight had been hijacked, and the hijackers had knives and box cutters.” American 77 crashed into the Pentagon at 9:37 a.m., killing all 64 people on board, including the five hijackers. Information gathered from the calls from flight attendants and passengers enabled investigators to piece together the events on board each plane and how the hijackings occurred.
This is the time line of the drastic day that took the many lives in the New York city:
8:46 a.m. – Time AA Flight 11 struck North Tower
9:03 a.m. – Time UA Flight 175 struck South Tower
9:37 a.m. – Time AA Flight 77 struck the Pentagon
10:03 a.m. – Time UA Flight 93 crashed near Shanksville, Pennsylvania
10:28 a.m. – Time of fall of the North Tower
wtc

Google’s super cryptic page for new developers!!!!

Guys,have you ever heard of this new style of recruitment that is based on your web browsing. Google has made an initiation in the field of recruitment in this style. based on the type of words you search for like “MUTEX LOCK” which is related to the programming language c++. in this passion in many people across the globe they will be monitored and if found that you are worthy.
you will shortly receive a notification from the following web address:- https://foobar.withgoogle.com/ .Screenshot (460)
Even if you try to access that as you aren’t authorized you won’t be allowed any further. Basically, it is a super cryptic page.
Screenshot (459)
How do you get invited? Apparently, by showing an interest and expertise in programming languages like Python through your Google search history, according to commenter’s on Hacker News .
The invitation sent will shortly appear on the search engine page itself in this way inviting you to a challenge which basically comprises of some super mysterious puzzles, etc.
mutex
Once if you are invited you will shortly find the screen in this way:googlefoobargooglefoobar-540x334
Can you create a CON Folder in Windows? If how can?

Can you create a CON Folder in Windows? If how can?

Guys, have you ever tried to create a CON folder or any folder with names such as “con”, “prn”, “nul” “com1” “com2” “lpt1” etc. but failed? Is it impossible to create folders with such names in windows?

Actually the answer is NO and YES. NO because, when create a new folder and try to rename it to any one of the above specified names, you know what happens! In Windows XP the folder name automatically changes back to “New Folder” no matter you try to renaming it any number of times. Where as in case of Windows Vista and Windows 7, when you try to rename the file you get an error message saying “The specified device name is invalid”.

So, we in deed can’t create the folder naming “CON” anywhere in the computer unless and until you have altered the settings using command prompt. Not only CON there were many other key words with which we can’t create the folders.

Here are others:

CON, PRN, AUX, CLOCK$, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9,
LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9.

Keywords and Their corresponding Functions:

Reserved Keywords Function
CON Keyboard and Display
PRN System list device, usually a parellel port
AUX Auxiliary Device,usually a serial port
NUL Bit-Bucket Device
A:-Z: Drive Letter
COM1 First Serial communications port
COM2 Second Serial communications port
COM3 Third Serial communications port
COM4 Fourth Serial communications port
LPT1 First Parallel printer port
LPT2 second Parallel printer port
LPT3 Third Parallel printer port

YES because it is still possible to create these folders using some simple methods as explained below:

  1. Using the Command Prompt:

Here is a step-by-step procedure to create the “con” folder using the command prompt:

  1. Go to the command prompt:
  2. Type in the command prompt (For ex. To create a folder in the C: drive by name: “CON”)

C:\>md \\.\c:\con

Create-a-Folder-Named-Con-Step-4

NOTE: “con” can be replaced by any other names such as “prn”, “nul” “com1” “com2” “lpt1” etc.

  1. In case if you wish to delete the folder, use the following command:

C:\>rd \\.\e:\con

NOTE: This folder can only be deleted from the command prompt. You cannot remove it by right-click delete.

  1. Using ALT Key and Numeric Keypad:

You can also use the Alt key and the Numeric keypad to accomplish the same job in a much easier way. Here is how you can do it:

  1. Create a New folder (Right-click -> New -> Folder)
  2. Once the new folder is created, right-click on it and select the option “Rename”.
  3. Hold down the ALT key and type 0160 from the numeric keypad (ALT+0160) and release the ALT key.
    1. Now, the folder name should go blank so that you can type any name of your choice such as “con”, “prn” “nul” etc. and press Enter. That’s it, you’re done!