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Comment: Small blast followed by ordinary blast (Score 2) 154

by Rotaluclac (#49534913) Attached to: Hubble Spots Star Explosion Astronomers Can't Explain
It's quite simple. First, the star underwent a small blast, too small to be detected, in which it expelled a layer of gas. That gas formed a cloud around the star. Then, there was an ordinary blast. What we saw was the gas cloud being illuminated by the ordinary blast.

Comment: Get two different lenses (Score 1) 464

by Rotaluclac (#48724427) Attached to: Ask Slashdot: Are Progressive Glasses a Mistake For Computer Users?

Some 18 months ago, I started to have problems reading, especially in darker environments. Reading the menu in some restaurants was getting real hard.

My ophtalmologist proposed to try two different contact lenses (I use contact lenses for many years already). One lens, for my left eye, would have optimal focus at short distances. The other lens, for my right eye, would have optimal focus for long distances.

My ophtalmologist told me that some people love this setup while others just get nausea, so I could try them for a month. If I decided they were not for me, I could replace them with ordinary contact lenses at no cost (but then I would of course need reading glasses). If I liked them, I could keep them.

I kept them. I love them.

My brain automatically uses the eye that's most suited for the distance I'm focusing at. So now, reading from the computer screen, I use my left eye. If I close my left eye and use my right eye to look at the screen, things get a bit blurry.

Similar for long distances. When driving, my brain automatically uses the right eye, so I can see traffic and traffic signs in good focus. If I close my right eye while driving, things get blurry.

This all happens totally automatically. I do not have to spend any effort.

Estimating speeds and distances is still possible. I have no problems catching a ball thrown toward me, and I can still estimate the locations and speeds of cars, cyclists and pedestrians while driving. It seems 3D vision still works when one image is sharp while the other one is blurry.

I use contact lenses, but my ophtalmologist told me this setup works with (single focus) glasses too.

I suggest you propose this setup to your ophtalmologist and see what (s)he says.

Comment: Eavesdropper in the middle? (Score 1) 247

An email address travels through several systems between you and the other side. This applies to the time when you fill in your email address in a web form, and even more so when the company sends out emails to your address.

Thus, it may be premature to conclude that the fault is with the company. Eavesdropping may have occurred at any of the intermediate systems.

Comment: Re:A short list (Score 1) 547

by Rotaluclac (#40800411) Attached to: Ask Slashdot: How To Clean Up My Work Computer Before I Leave?

After that, one should clean the free space on the disc. If you have no rights whatsoever, the simplest way to do that is by filling up the disc with random files until it's full. Then erase the filler files and you're done.

I do this by creating a text file called 'a' for simplicity, 4096 bytes long, containing only the character 'Z' (which makes for a nice binary pattern). In a DOS prompt, I issue commands like

copy /b a+a+a+a+a+a+a+a+a+a+a+a+a+a+a+a b
copy /b b+b+b+b+b+b+b+b+b+b+b+b+b+b+b+b c
copy /b c+c+c+c+c+c+c+c+c+c+c+c+c+c+c+c d

to fill the disc. However, if you even do not have access to a command prompt, multiple copies of any other file will do.

Comment: Only one-way transfer? (Score 5, Interesting) 403

by Rotaluclac (#39743317) Attached to: Europe Agrees To Send Airline Passenger Data To US

Europe sends data about all financial transactions to the US. Does the US send data about all financial transactions to Europe?

Europe sends data about all airline passengers to the US. Does the US send data about all airline passengers to Europe?

Long ago I thought we were equal. Obviously, one of us is more equal than the other

Comment: Re:Autism (Score 1) 1007

by Rotaluclac (#39665005) Attached to: Lack of Vaccination Sends Babies In Oregon To the Hospital

Sounds nice, but...

What if the wife gives in, you then have kids, and 6 to 18 months after birth (or whatever is the time for vaccination), she changes her mind? I've seen it happen...

What if she changes her mind, tries to re-discuss the issue with her husband, finds she can't convince him, and only pretends to give in. She says she'll bring the child to vaccination, but in reality, she doesn't. She just lies to her husband.

The problem is: if a mother firmly believes that this is in the best interest of her child, and if she believes vaccination poses a risk to her beloved little child, then those feelings are so overwhelming, there's nothing she can do to fight them.

I've seen it happen...

Comment: Re:Why use utility poles at all? (Score 1) 153

by Rotaluclac (#38746916) Attached to: Google Fiber Work Hung Up In Kansas City

Ah, as ever the pedestrian has to deal with ripped-up pavements whilst the motorists are mollycoddled. Can't possibly require that car to drive around a hole in the road.

A trench of 50 cm or narrower doesn't really hurt when the sidewalk is about 2 meters wide. It was only a minor nuisance.

Where people could be expected to want to cross the trench, they made wooden "bridges" every 100 meters or so.

"An ounce of prevention is worth a ton of code." -- an anonymous programmer