Archive for April, 2009

April 27th, 2009

Dr. Hawking will recover

The BBC reports that Dr. Hawking will make a full recovery. This is good news as Stephen will thusly be able to enjoy his retirement.

Unsubstantiated rumors suggest that Dr. Hawking will take up golf and ultimate frisbee in his spare time.

April 27th, 2009

Dead Space Review

Dead Space is a game developed by EA Games, and released mid-October 2008 for both the PS3 and XBOX 360.

You play Isaac Clarke, an Engineer, sent to the USG Ishimura in order to repair the ship after a distress call was issued from it. After crash landing on board, you are violently separated from the rest of the landing party and thrown into a sadistic due or die situation. You have to survive continual onslaughts against horrible monsters called Necromorphs, while repairing the ship and searching for your girlfriend, Nicole.

One of the first things you notice when playing is the controls. The game gives you massive freedom with respect to camera angles, allowing you to swing the camera about and view Isaac in a full three sixty. The controls for firing are the only (small) beef I have with the game. All the weapons in the game have two fire modes, and the button for “switch mode” and “fire” are easy to transpose, leading to many, many ruined shots. Other then that minor flaw, the controls are spot on: easy to remember, quick to learn, and responsive to the touch.

The graphics and music are amazing. The game really shows off the power of the PS3, with lots of polygons, smooth textures, and powerful lighting. Both the creatures and the background are beautifully rendered, with smooth creature animations, an interactive environment, and an attention to detail not found in many games. The lighting is dynamic and full, with everything from soft ambient light in meeting rooms and hallways, to harsh industrial lighting in workrooms, and even the occasional burnt out or destroyed light. Much like the lighting, the music is sublime when it needs to be, and useful when it must be. When enemies are on alert, the game increases the sound, and plays special music to let you know Issac’s marked for death. The music has saved my bacon more then once in dimly lit rooms.

The story is also nice, with a fresh narrative, a superb plot, and great plot twists. You start out on a routine repair mission, but end up fighting giant tentacle monsters in a bid to protect the galaxy from horrid alien scum, bent on killing everyone and nibbling on their innards! I won’t give much away, but I will say there is a enigmatic acrostic scattered throughout the game.

Another thing you notice very quickly is fighting. Even though this game is not a straight up shooter, it does have a lot of fighting, usually three-on-one, five-on-one, whatever. Head shots are completely useless, as the enemies are just fine without a functioning head, much like Republicans. To destroy enemies, you must remove all their limbs, a sometimes daunting task when you are surrounded and taking damage from all directions. The systematic destruction of enemies by limb removal is impressive, and shows a great deal of attention from the programmers about the story.

Alongside the fighting aspect of the game is weapons and item management. I played through the entire game with only using the default weapon, thus I always had ammo for other weapons I could sell to buy ammo for my own weapon. If I had used common sense, and gone with multiple weapons, ammo would have almost always been a problem. The game balances ammo drops with enemies quite well, so going pell-mell full auto on one particularly frustrating enemy would drain your resources, and leave you vulnerable to the guy right behind him. However, the game is somewhat forgiving, so you are not always scrounging for resources, trying to live on one life point, while bringing down six enemies with only three shots left in your gun.

Health items are fairly rare, though, so playing smart involves lots of perfect shots, or lots of running away to avoid getting torn to shreds. Health upgrades are almost always perfectly positioned in the game, right after you fight a boss, or mini-boss whom has just torn poor little Isaac a new orifice.

With such a great balance of fighting to puzzle solving, almost perfect controls, wonderful graphics and sound effects, and all around awesome game play, I would say Dead Space is one game worth buying, and playing multiple times. Dead Space is a definite must have for the PS3.

April 23rd, 2009

Supermassive Black Holes

It is hypothesized that at the center of every spiral and elliptical galaxy is a supermassive black hole holding the entire galaxy together. Dwarf and irregular galaxies may have supermassive black holes in them, although smaller irregulars may have just massive black holes contained in them.

Studies have shown that these supermassive black holes exist even in the early universe, at times of 800 million years after the big bang, or even earlier. This, however is a problem, as there is not enough time for these holes to grow to their supermassive size.

This popular science article suggests that the black holes may have formed from regular star collapses; however, they then venture into a region of space with dark matter, where the black hole sucks it up, and gains it as mass.

This makes sense, since galaxies sit immersed in a halo of dark matter, yet there is no evidence that dark matter is in the galaxy itself.

It may be possible to measure the growth of black holes by examining the change in the rates of their electrical and/or mass output, and hence, know how much dark matter the black hole is eating, and by assuming constant density, how much dark matter is intertwined in the normal matter in our galaxy.

April 21st, 2009

Stephen Hawking

The great British physicist Stephen Hawking has been stricken with a chest infection, and sent to the hospital.

It appears Dr. Hawking has been sick for quite some time, as he had to cancel an appearance at Arizona State University on April 6th.

I for one, hope Dr.Hawking makes a complete recovery.

April 11th, 2009

An Amazing APOD

APOD (Astronomy Picture of the Day) has an absolutely amazing picture of a spacewalker working on the International Space Station.

Apparently the picture was taken using a video camera and a telescope.

Picture here



On a related note, if you want to see when the ISS is going to go overhead, you can go to isstracker.com

To track other space junk, check out This NASA webpage.

More NASA goodness is here.

April 10th, 2009

Another gaming great dies

Wired has confirmed that Dave Arneson, co-founder of Dungeons and Dragons, creator of Blackmoor, and inventor of the entire RPG concept has died.

Dave took the basic concept of fighting in war games and turned it on its head, by giving players control of a single character instead of an entire army, and making the player responsible for that character, and that character alone. The game leader, called the dungeon master, then controlled everything else.

So, to you, Dave Arneson; creator of the RPG, co-founder of D&D, and the first Dungeon Master, I roll some D20. I roll them in your honor and memory.

April 7th, 2009

Motl on Feynman

Lubos Motl has found some of Feynmann’s lectures on Youtube. Check them out, and give Lubos a buzz.

April 3rd, 2009

Mathematics Notation vs. Physics Notation

Abtruse Goose has a powerful trueism. Physics and Math, even though they are both math based, physics notation is completely different from mathematics notation, often to the point where you can’t quickly move between the two, and sometimes notation will even hinder comprehension.

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Take for instance, spherical notation. In Math, rho is the radius of the sphere, whereas, in physics, it is r. The projection from r onto the z axis (called z hat in physics, k hat in mathematics and engineering) is r*cos(theta), the projection onto the y axis is y cos(phi), whereas in mathematics, we must swap the position of theta and phi.

Thus, we must be careful to state explicitly what our coordinate system is, lest we have major issues.

April 3rd, 2009

F**k

Oh, fuck; this thing is just… damn.

Giant Sea Worm

Here we have a giant four foot sea worm that eats coral, fish and metal hooks, and can snap twenty pound line.

Here is a direct link to the aquarium webpage.

April 3rd, 2009

Freeware – Internet Browsers

There are several mainstream browsers that I will be comparing today.

  • Internet Explorer 7
  • Mozilla Firefox
  • Google Chrome
  • Opera
  • Apple Safari

Internet Explorer 7

Install size: 16.2 MB

Install time: 286 seconds

RAM usage: 8 MB/ 93 MB

PF usage: 13 MB/ 133 MB

Time to open: 5 seconds, though to load msn.com can take up to a minute

Notes: If you look at the RAM and pagefile (PF) usage, you will see two numbers. The first is when I open about::blank, and the second is when I have opened ten pages.

IE 7 is the latest stable release of Internet Exploder, and is needed for all Windows machines due to Windows Update. I don’t like IE 7 due to the changes in the menu, mainly the lack thereof.

I don’t know where File, Edit, Tools, etc are. I also do not like the inability to re-open a page you close. On the upside, Microsoft has copied Firefox with allowing people to include add-ons, and I am sure there are plenty of add ons, but maybe I’ll save those for another day.


Mozilla Firefox

Install size: 7.1 MB

Install time: 332 seconds

RAM usage: 32 MB/ 133 MB

PF usage: 10 MB/ 254 MB

Time to open: A disappointing 156 seconds

Notes: If you look at the RAM and pagefile (PF) usage, you will see two numbers. The first is when I open about::blank, and the second is when I have opened ten pages.

Firefox is a big disappointment due to the slow opening speed, and the enormous PF and memory usage. On the upside, it comes with easy add-ons and the built in ability to re-open a recently closed page. Several add ons are massively useful, with Foxit and adblock them most useful. These two are the reason I use Firefox over all other browsers. Firefox also has the ability to clear the browser history every time you close it, a plus if you have limited space on your machine.


Google Chrome

Install size: 17.6 MB

Install time: 286 seconds

RAM usage: 10 MB/ 123 MB

PF usage: 12 MB/ 234 MB

Time to open: 7 seconds

Notes: If you look at the RAM and pagefile (PF) usage, you will see two numbers. The first is when I open about::blank, and the second is when I have opened ten pages.

The largest problem I have with Chrome is that it will start not rendering images after opening nine tabs. It will render the last three or four tabs you have viewed, but beyond that, there is a wait of up to sixty-three seconds when you click on another tab. I also don’t like the most recently saved/most opened pages page. Even if you use the Incognito mode, saving a webpage will show up in the recently saved tab.


Opera

Install size: 5.3 MB

Install time: 73 seconds

RAM usage: 8/72 MB

PF usage: 23/244 MB

Time to open: 13 seconds

Notes: If you look at the RAM and pagefile (PF) usage, you will see two numbers. The first is when I open about::blank, and the second is when I have opened ten pages.

Opera is nice, however, when you close then reopen Opera, it opens the last page you looked at. For me, this alone is enough to drop Opera.


Apple Safari

Install size: 25.4 MB

Install time: 100 seconds

RAM usage: –

PF usage: –

Time to open: –

Notes: If you look at the RAM and pagefile (PF) usage, you will see two numbers. The first is when I open about::blank, and the second is when I have opened ten pages.

“Apple.com wants to install Quicktime, do you agree?” NO! If I wanted Quicktime, I would poke my eyes out and lose 70 IQ points. I got a Windows Media Player codec for that shit.

Safari needed a dedicated video card with 64 MB of memory, something I don’t have. It also required at a minimum of 256 MB of RAM, the max I had. With such restraints, Safari didn’t like my computer, and I don’t like Safari. Oh well.

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