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はてなキーワード: absorbとは

2019-03-30

anond:20190330085715

Absorb / 吸収》 (白)(青)(青)

インスタント

呪文1つを対象とし、それを打ち消す。あなたは3点のライフを得る。

2014-01-12

元・ベテラン釣り師の思い出話

10年ほど前、僕はFisherだった。僕はFishを愛していた。念の為に説明すると、Fishとは《アトランティスの王/Lord of Atlantis》を採用した青系のマーフォークビートダウンデッキのことだ。当時のスタン環境は6版+マスクブロック+インベイジョンブロック。この頃、Fishは主流ではなかったが、地味に強かった。当時のFishは《衝撃のマーフォーク/Jolting Merfolk》や《ヴォーデイリアゾンビ/Vodalian Zombie》などMTG史上稀に見る良質なマーフォークたちを抱えていた。《海のハンター/Seahunter》から《衝撃のマーフォーク》を引っ張ってこれるのは大きい。《陥穽/Ensnare》も強かった。《妨害/Thwart》《撃退/Foil》というビートダウンと相性のいいカウンターを抱えていたのも大きい。もはや、今釣りをせずにいつ釣りをするという環境だった。僕は青黒Fishを愛用してブルーオーブライジングウォーターやFiresを釣りまくっていた。

はいえ、《吸収/Absorb》を手に入れた青白コンが隆盛を極めた時代でもある。青白コンといえばラスゴ、この常識Fishには辛かった。カウンターを抱えている分Firesよりは幾分耐性があるにはあるが、基本毎ターン土地をフルタップするビートダウンで、カウンターは多大な犠牲を払って《妨害/Thwart》《撃退/Foilピッチで打つしかない。もちろん《対抗呪文/Counterspell》も積んではいるが、対抗呪文のために青二マナ残すようなプレイングでは釣り師の名が廃る。つまり、青白の放つラスゴは凌ぎきれない。対青白コンの勝率はべらぼうに悪かった。

結局のところ、僕のFishは対ライジングウォーター・対Firesのメタデッキとしてのみ存在できたことになる。

釣り師は結局、ラスゴには勝てない。このことからどのような教訓を読み取るかはみなさんにお任せする。

2011-03-16

ドラゴンボールで学ぶオブジェクト指向ツッコミ

http://anond.hatelabo.jp/20110316202255

亀仙流やつ鶴仙流など、世の中にはいくつかの流派があり、それぞれ
カメハメ波やドドン波、舞空術などの技(メソッド)がある。
実際に技を使う場合、技を覚えているZ戦士(インスタンス)が必要。

クラス = 流派

メソッド = 技

インスタンス = Z 戦士

というのはおもしろいと思うし, 例えばゲームを作るなら実際にそういう実装になると思う.

例)セルを作りましょう。
class Cell extends Goku,Veget,Picoro,Tenshinhan,Kuririn{
....
}
cell_inst = new Cell();
cell_inst.shotKienzan(); //Kuririnをextendsしているので気円斬が使えます

しかし, ここではクラス = Z 戦士になってしまっているので, 混乱を招くだろう.

むしろ, 「JavaScript における prototype」 に絞って説明するのはどうだろう.

(ついでに「撃つ」の現在形は shot でなく shoot ですね)

var Goku = function () {};
Goku.prototype.shootKamehameha = function () {
  console.log("波!!!");
};

var goku = new Goku;
goku.shootKamehameha(); // 波!!!

var Gohan = function () {};
Gohan.prototype = new Goku;

var gohan = new Gohan;
gohan.shootKamehameha(); // 波!!!

そしてセルによる吸収は, 動的な継承として考えるのがより自然だろう.

var Goku = function () {};
Goku.prototype.shootKamehameha = function () {
  console.log("波!!!");
};

var Vegeta = function () {};
Vegeta.prototype.shootBigBangAttack = function () {
  console.log("ビッグバンアタック!!!");
};

var Cell = function () {};
// 吸収メソッド
Cell.prototype.absorb = function (target) {
  for (var method in target) {
    this[method] = target[method];
  }
};

var goku   = new Goku;
var vegeta = new Vegeta;

var cell = new Cell;
cell.absorb(goku);   // 悟空を吸収
cell.absorb(vegeta); // ベジータを吸収

cell.shootKamehameha();    // 波!!!
cell.shootBigBangAttack(); // ビッッグバンアタック!!!

そして次にクロージャの使用例として挙げられた次の例.

例)連続エネルギー波
var shotRenzokuEnergy = function( count ){
	var shotEnergy = function(){
		//エネルギー波を放ちます
	};
	for(var i=0;i<count;i++){
		shotEnergy();
	}
};

この実装では, shotRenzokuEnergy を実行するたびに shotEnergy が毎回定義されてしまい, 非効率である.

以下のように書き換えることで, shootEnergy の定義は, shootRenzokuEnergy の定義時の 1 回のみとなる.

var shootRenzokuEnergy = (function () {
  var shootEnergy = function () {
    console.log("エネルギー波!!!");
  };

  return function (count) {
    for (var i = 0; i < count; i++) {
      shootEnergy();
    }
  };
})();

shootRenzokuEnergy(10); // エネルギー波!!! x 10

ドラゴンボールで学ぶオブジェクト指向

オブジェクト指向の基本

亀仙流やつ鶴仙流など、世の中にはいくつかの流派(=クラス)があり、それぞれの流派にかめはめ波どどん波舞空術などの技(メソッド)がいくつかあります

実際に流派にある技を使う場合、技を覚えているZ戦士(インスタンス)が必要になります

例)亀仙流を覚えた孫悟空を使ってかめはめ波を放って敵を倒す
goku = new KamesenRyu("goku");
goku.shootKamehameha(teki);

Z戦士によっては複数の流派の技が使えたり、自分の技を人に教えることが出来ます継承)。

また悟空クリリンのように同じ流派でも同じ技で違う性能を持っていたり、オリジナルの技を持っているなどの違いがあります

クラスセルを作るためのZ戦士達の遺伝子情報と言っても良いかもしれません。

例)セルを作りましょう。
class Cell extends Goku,Veget,Picoro,Tenshinhan,Kuririn{
....
}
cell_inst = new Cell();
cell_inst.shootKienzan(); //Kuririnをextendsしているので気円斬が使えます


世界の成り立ち

世界プログラミング言語)によってはただの人を後付でZ戦士にすることが可能です

(JavaScriptRubyなど)

noumin = new Hito(); 
noumin.kougekiKuwa = function(){
	//戦闘力たったの5…ゴミめ!
};

noumin.shootKamehameha = function(){
	//な、なんだと!?
};

農民がいきなりかめはめ波うつようになったら危険ですね、危ないです。

このように後付でメソッドを追加出来るタイプ危険性を含んでいます。

クラスインスタンス

http://anond.hatelabo.jp/20110316204446

インスタンスなのかクラスなのかはっきりしろよ・・・

セルを作るならZ戦士(インスタンス)を継承しなきゃならんぞ

とても良いつっこみが来たので追記します。

前半部分ではZ戦士をインスタンスしましたが、セルを作るにはZ戦士がインスタンスでは出来ないので

なのでZ戦士それぞれをクラスという形に再定義しました

何をインスタンスにして、何をクラスにするかが「設計」なんですね。

何がインスタンスで何がクラスか、加えて説明します。

セルの第一段階ではGokuなどのZ戦士の遺伝子があれば作ることが出来ました

cell_inst = new Cell(); //このセルは第一段階

でも第二段階以降は人造人間17号、18号が必要でしたね。

cell_inst.absorb(17gou); //第二段階に変身
cell_inst.call18gou();
cell_inst.absorb(18gou); //最終段階に変身

class Cell ....{
   function call18gou(){
        if(!this.17gou)return error(); //17号を吸収していないと失敗する
        this.17gou.speak("****略*****ドクターゲロ様****略****");
   }
}

この場合、17号と18号はそれぞれインスタンスです

17gouを吸収したので、17号の声で18号を呼ぶことが出来るようになりました

でもドクターゲロ「様」って言ったのでセルだってバレバレですね。

かいセリフは忘れたのでどなたか資料を下さい…。

追記

コメントへのレスを追加。

http://anond.hatelabo.jp/20110316224648

追記2

クロージャについてちゃんと書こうと思って挫折。どなたか良いアイディアを下さい。

変数スコープ解説する必要があるかなと思ったんですオブジェクト指向からは外れるような気がします。

エネルギー波→連続エネルギー波がどこかに使えそうな気がしましたが、気のせいだったぜ…

追記3

続編書きましたhttp://anond.hatelabo.jp/20110319020332

2011-03-14

福島原子力発電所CNNコメント欄 MIT科学者見解2【東日本巨大地震

When the diesel generators were gone, the reactor operators switched to emergency battery power. The batteries were designed as one of the backups to the backups, to provide power for cooling the core for 8 hours. And they did.

Within the 8 hours, another power source had to be found and connected to the power plant. The power grid was down due to the earthquake. The diesel generators were destroyed by the tsunami. So mobile diesel generators were trucked in.

This is where things started to go seriously wrong. The external power generators could not be connected to the power plant (the plugs did not fit). So after the batteries ran out, the residual heat could not be carried away any more.

At this point the plant operators begin to follow emergency procedures that are in place for a “loss of cooling event”. It is again a step along the “Depth of Defense” lines. The power to the cooling systems should never have failed completely, but it did, so they “retreat” to the next line of defense. All of this, however shocking it seems to us, is part of the day-to-day training you go through as an operator, right through to managing a core meltdown.

It was at this stage that people started to talk about core meltdown. Because at the end of the day, if cooling cannot be restored, the core will eventually melt (after hours or days), and the last line of defense, the core catcher and third containment, would come into play.

But the goal at this stage was to manage the core while it was heating up, and ensure that the first containment (the Zircaloy tubes that contains the nuclear fuel), as well as the second containment (our pressure cooker) remain intact and operational for as long as possible, to give the engineers time to fix the cooling systems.

Because cooling the core is such a big deal, the reactor has a number of cooling systems, each in multiple versions (the reactor water cleanup system, the decay heat removal, the reactor core isolating cooling, the standby liquid cooling system, and the emergency core cooling system). Which one failed when or did not fail is not clear at this point in time.

So imagine our pressure cooker on the stove, heat on low, but on. The operators use whatever cooling system capacity they have to get rid of as much heat as possible, but the pressure starts building up. The priority now is to maintain integrity of the first containment (keep temperature of the fuel rods below 2200°C), as well as the second containment, the pressure cooker. In order to maintain integrity of the pressure cooker (the second containment), the pressure has to be released from time to time. Because the ability to do that in an emergency is so important, the reactor has 11 pressure release valves. The operators now started venting steam from time to time to control the pressure. The temperature at this stage was about 550°C.

This is when the reports about “radiation leakage” starting coming in. I believe I explained above why venting the steam is theoretically the same as releasing radiation into the environment, but why it was and is not dangerous. The radioactive nitrogen as well as the noble gases do not pose a threat to human health.

At some stage during this venting, the explosion occurred. The explosion took place outside of the third containment (our “last line of defense”), and the reactor building. Remember that the reactor building has no function in keeping the radioactivity contained. It is not entirely clear yet what has happened, but this is the likely scenario: The operators decided to vent the steam from the pressure vessel not directly into the environment, but into the space between the third containment and the reactor building (to give the radioactivity in the steam more time to subside). The problem is that at the high temperatures that the core had reached at this stage, water molecules can “disassociate” into oxygen and hydrogen – an explosive mixture. And it did explode, outside the third containment, damaging the reactor building around. It was that sort of explosion, but inside the pressure vessel (because it was badly designed and not managed properly by the operators) that lead to the explosion of Chernobyl. This was never a risk at Fukushima. The problem of hydrogen-oxygen formation is one of the biggies when you design a power plant (if you are not Soviet, that is), so the reactor is build and operated in a way it cannot happen inside the containment. It happened outside, which was not intended but a possible scenario and OK, because it did not pose a risk for the containment.

So the pressure was under control, as steam was vented. Now, if you keep boiling your pot, the problem is that the water level will keep falling and falling. The core is covered by several meters of water in order to allow for some time to pass (hours, days) before it gets exposed. Once the rods start to be exposed at the top, the exposed parts will reach the critical temperature of 2200 °C after about 45 minutes. This is when the first containment, the Zircaloy tube, would fail.

And this started to happen. The cooling could not be restored before there was some (very limited, but still) damage to the casing of some of the fuel. The nuclear material itself was still intact, but the surrounding Zircaloy shell had started melting. What happened now is that some of the byproducts of the uranium decay – radioactive Cesium and Iodine – started to mix with the steam. The big problem, uranium, was still under control, because the uranium oxide rods were good until 3000 °C. It is confirmed that a very small amount of Cesium and Iodine was measured in the steam that was released into the atmosphere.

It seems this was the “go signal” for a major plan B. The small amounts of Cesium that were measured told the operators that the first containment on one of the rods somewhere was about to give. The Plan A had been to restore one of the regular cooling systems to the core. Why that failed is unclear. One plausible explanation is that the tsunami also took away / polluted all the clean water needed for the regular cooling systems.

The water used in the cooling system is very clean, demineralized (like distilled) water. The reason to use pure water is the above mentioned activation by the neutrons from the Uranium: Pure water does not get activated much, so stays practically radioactive-free. Dirt or salt in the water will absorb the neutrons quicker, becoming more radioactive. This has no effect whatsoever on the core – it does not care what it is cooled by. But it makes life more difficult for the operators and mechanics when they have to deal with activated (i.e. slightly radioactive) water.

But Plan A had failed – cooling systems down or additional clean water unavailable – so Plan B came into effect. This is what it looks like happened:

In order to prevent a core meltdown, the operators started to use sea water to cool the core. I am not quite sure if they flooded our pressure cooker with it (the second containment), or if they flooded the third containment, immersing the pressure cooker. But that is not relevant for us.

The point is that the nuclear fuel has now been cooled down. Because the chain reaction has been stopped a long time ago, there is only very little residual heat being produced now. The large amount of cooling water that has been used is sufficient to take up that heat. Because it is a lot of water, the core does not produce sufficient heat any more to produce any significant pressure. Also, boric acid has been added to the seawater. Boric acid is “liquid control rod”. Whatever decay is still going on, the Boron will capture the neutrons and further speed up the cooling down of the core.

The plant came close to a core meltdown. Here is the worst-case scenario that was avoided: If the seawater could not have been used for treatment, the operators would have continued to vent the water steam to avoid pressure buildup. The third containment would then have been completely sealed to allow the core meltdown to happen without releasing radioactive material. After the meltdown, there would have been a waiting period for the intermediate radioactive materials to decay inside the reactor, and all radioactive particles to settle on a surface inside the containment. The cooling system would have been restored eventually, and the molten core cooled to a manageable temperature. The containment would have been cleaned up on the inside. Then a messy job of removing the molten core from the containment would have begun, packing the (now solid again) fuel bit by bit into transportation containers to be shipped to processing plants. Depending on the damage, the block of the plant would then either be repaired or dismantled.

Now, where does that leave us?

・The plant is safe now and will stay safe.

Japan is looking at an INES Level 4 Accident: Nuclear accident with local consequences. That is bad for the company that owns the plant, but not for anyone else.

・Some radiation was released when the pressure vessel was vented. All radioactive isotopes from the activated steam have gone (decayed). A very small amount of Cesium was released, as well as Iodine. If you were sitting on top of the plants’ chimney when they were venting, you should probably give up smoking to return to your former life expectancy. The Cesium and Iodine isotopes were carried out to the sea and will never be seen again.

・There was some limited damage to the first containment. That means that some amounts of radioactive Cesium and Iodine will also be released into the cooling water, but no Uranium or other nasty stuff (the Uranium oxide does not “dissolve” in the water). There are facilities for treating the cooling water inside the third containment. The radioactive Cesium and Iodine will be removed there and eventually stored as radioactive waste in terminal storage.

・The seawater used as cooling water will be activated to some degree. Because the control rods are fully inserted, the Uranium chain reaction is not happening. That means the “main” nuclear reaction is not happening, thus not contributing to the activation. The intermediate radioactive materials (Cesium and Iodine) are also almost gone at this stage, because the Uranium decay was stopped a long time ago. This further reduces the activation. The bottom line is that there will be some low level of activation of the seawater, which will also be removed by the treatment facilities.

・The seawater will then be replaced over time with the “normal” cooling water

・The reactor core will then be dismantled and transported to a processing facility, just like during a regular fuel change.

Fuel rods and the entire plant will be checked for potential damage. This will take about 4-5 years.

・The safety systems on all Japanese plants will be upgraded to withstand a 9.0 earthquake and tsunami (or worse)

・I believe the most significant problem will be a prolonged power shortage. About half of Japan’s nuclear reactors will probably have to be inspected, reducing the nation’s power generating capacity by 15%. This will probably be covered by running gas power plants that are usually only used for peak loads to cover some of the base load as well. That will increase your electricity bill, as well as lead to potential power shortages during peak demand, in Japan.

If you want to stay informed, please forget the usual media outlets and consult the following websites:

http://www.world-nuclear-news.org/RS_Battle_to_stabilise_earthquake_reactors_1203111.html

http://bravenewclimate.com/2011/03/12/japan-nuclear-earthquake/

http://ansnuclearcafe.org/2011/03/11/media-updates-on-nuclear-power-stations-in-japan/

福島原子力発電所CNNコメント欄 MIT科学者科学者見解1【東日本巨大地震

結論:大丈夫

MvK2010

I'm going to copy paste a full blog post of a research scientist at MIT here, who explains the situation at Fukushima much better than anyone else has, his message: no worries.

This post is by Dr Josef Oehmen, a research scientist at MIT, in Boston.

He is a PhD Scientist, whose father has extensive experience in Germany’s nuclear industry. I asked him to write this information to my family in Australia, who were being made sick with worry by the media reports coming from Japan. I am republishing it with his permission.

It is a few hours old, so if any information is out of date, blame me for the delay in getting it published.

This is his text in full and unedited. It is very long, so get comfy.

I am writing this text (Mar 12) to give you some peace of mind regarding some of the troubles in Japan, that is the safety of Japan’s nuclear reactors. Up front, the situation is serious, but under control. And this text is long! But you will know more about nuclear power plants after reading it than all journalists on this planet put together.

There was and will *not* be any significant release of radioactivity.

By “significant” I mean a level of radiation of more than what you would receive on – say – a long distance flight, or drinking a glass of beer that comes from certain areas with high levels of natural background radiation.

I have been reading every news release on the incident since the earthquake. There has not been one single (!) report that was accurate and free of errors (and part of that problem is also a weakness in the Japanese crisis communication). By “not free of errors” I do not refer to tendentious anti-nuclear journalism – that is quite normal these days. By “not free of errors” I mean blatant errors regarding physics and natural law, as well as gross misinterpretation of facts, due to an obvious lack of fundamental and basic understanding of the way nuclear reactors are build and operated. I have read a 3 page report on CNN where every single paragraph contained an error.

We will have to cover some fundamentals, before we get into what is going on.

Construction of the Fukushima nuclear power plants

The plants at Fukushima are so called Boiling Water Reactors, or BWR for short. Boiling Water Reactors are similar to a pressure cooker. The nuclear fuel heats water, the water boils and creates steam, the steam then drives turbines that create the electricity, and the steam is then cooled and condensed back to water, and the water send back to be heated by the nuclear fuel. The pressure cooker operates at about 250 °C.

The nuclear fuel is uranium oxide. Uranium oxide is a ceramic with a very high melting point of about 3000 °C. The fuel is manufactured in pellets (think little cylinders the size of Lego bricks). Those pieces are then put into a long tube made of Zircaloy with a melting point of 2200 °C, and sealed tight. The assembly is called a fuel rod. These fuel rods are then put together to form larger packages, and a number of these packages are then put into the reactor. All these packages together are referred to as “the core”.

The Zircaloy casing is the first containment. It separates the radioactive fuel from the rest of the world.

The core is then placed in the “pressure vessels”. That is the pressure cooker we talked about before. The pressure vessels is the second containment. This is one sturdy piece of a pot, designed to safely contain the core for temperatures several hundred °C. That covers the scenarios where cooling can be restored at some point.

The entire “hardware” of the nuclear reactor – the pressure vessel and all pipes, pumps, coolant (water) reserves, are then encased in the third containment. The third containment is a hermetically (air tight) sealed, very thick bubble of the strongest steel. The third containment is designed, built and tested for one single purpose: To contain, indefinitely, a complete core meltdown. For that purpose, a large and thick concrete basin is cast under the pressure vessel (the second containment), which is filled with graphite, all inside the third containment. This is the so-called “core catcher”. If the core melts and the pressure vessel bursts (and eventually melts), it will catch the molten fuel and everything else. It is built in such a way that the nuclear fuel will be spread out, so it can cool down.

This third containment is then surrounded by the reactor building. The reactor building is an outer shell that is supposed to keep the weather out, but nothing in. (this is the part that was damaged in the explosion, but more to that later).

Fundamentals of nuclear reactions

The uranium fuel generates heat by nuclear fission. Big uranium atoms are split into smaller atoms. That generates heat plus neutrons (one of the particles that forms an atom). When the neutron hits another uranium atom, that splits, generating more neutrons and so on. That is called the nuclear chain reaction.

Now, just packing a lot of fuel rods next to each other would quickly lead to overheating and after about 45 minutes to a melting of the fuel rods. It is worth mentioning at this point that the nuclear fuel in a reactor can *never* cause a nuclear explosion the type of a nuclear bomb. Building a nuclear bomb is actually quite difficult (ask Iran). In Chernobyl, the explosion was caused by excessive pressure buildup, hydrogen explosion and rupture of all containments, propelling molten core material into the environment (a “dirty bomb”). Why that did not and will not happen in Japan, further below.

In order to control the nuclear chain reaction, the reactor operators use so-called “moderator rods”. The moderator rods absorb the neutrons and kill the chain reaction instantaneously. A nuclear reactor is built in such a way, that when operating normally, you take out all the moderator rods. The coolant water then takes away the heat (and converts it into steam and electricity) at the same rate as the core produces it. And you have a lot of leeway around the standard operating point of 250°C.

The challenge is that after inserting the rods and stopping the chain reaction, the core still keeps producing heat. The uranium “stopped” the chain reaction. But a number of intermediate radioactive elements are created by the uranium during its fission process, most notably Cesium and Iodine isotopes, i.e. radioactive versions of these elements that will eventually split up into smaller atoms and not be radioactive anymore. Those elements keep decaying and producing heat. Because they are not regenerated any longer from the uranium (the uranium stopped decaying after the moderator rods were put in), they get less and less, and so the core cools down over a matter of days, until those intermediate radioactive elements are used up.

This residual heat is causing the headaches right now.

So the first “type” of radioactive material is the uranium in the fuel rods, plus the intermediate radioactive elements that the uranium splits into, also inside the fuel rod (Cesium and Iodine).

There is a second type of radioactive material created, outside the fuel rods. The big main difference up front: Those radioactive materials have a very short half-life, that means that they decay very fast and split into non-radioactive materials. By fast I mean seconds. So if these radioactive materials are released into the environment, yes, radioactivity was released, but no, it is not dangerous, at all. Why? By the time you spelled “R-A-D-I-O-N-U-C-L-I-D-E”, they will be harmless, because they will have split up into non radioactive elements. Those radioactive elements are N-16, the radioactive isotope (or version) of nitrogen (air). The others are noble gases such as Xenon. But where do they come from? When the uranium splits, it generates a neutron (see above). Most of these neutrons will hit other uranium atoms and keep the nuclear chain reaction going. But some will leave the fuel rod and hit the water molecules, or the air that is in the water. Then, a non-radioactive element can “capture” the neutron. It becomes radioactive. As described above, it will quickly (seconds) get rid again of the neutron to return to its former beautiful self.

This second “type” of radiation is very important when we talk about the radioactivity being released into the environment later on.

What happened at Fukushima

I will try to summarize the main facts. The earthquake that hit Japan was 7 times more powerful than the worst earthquake the nuclear power plant was built for (the Richter scale works logarithmically; the difference between the 8.2 that the plants were built for and the 8.9 that happened is 7 times, not 0.7). So the first hooray for Japanese engineering, everything held up.

When the earthquake hit with 8.9, the nuclear reactors all went into automatic shutdown. Within seconds after the earthquake started, the moderator rods had been inserted into the core and nuclear chain reaction of the uranium stopped. Now, the cooling system has to carry away the residual heat. The residual heat load is about 3% of the heat load under normal operating conditions.

The earthquake destroyed the external power supply of the nuclear reactor. That is one of the most serious accidents for a nuclear power plant, and accordingly, a “plant black out” receives a lot of attention when designing backup systems. The power is needed to keep the coolant pumps working. Since the power plant had been shut down, it cannot produce any electricity by itself any more.

Things were going well for an hour. One set of multiple sets of emergency Diesel power generators kicked in and provided the electricity that was needed. Then the Tsunami came, much bigger than people had expected when building the power plant (see above, factor 7). The tsunami took out all multiple sets of backup Diesel generators.

When designing a nuclear power plant, engineers follow a philosophy called “Defense of Depth”. That means that you first build everything to withstand the worst catastrophe you can imagine, and then design the plant in such a way that it can still handle one system failure (that you thought could never happen) after the other. A tsunami taking out all backup power in one swift strike is such a scenario. The last line of defense is putting everything into the third containment (see above), that will keep everything, whatever the mess, moderator rods in our out, core molten or not, inside the reactor.

http://anond.hatelabo.jp/20110314030613

へ続く

2010-07-09

ニコニコ大会議?

ニコニコ大会議2010夏 プレミアム先行にエントリー殺到! http://blog.nicovideo.jp/niconews/2010/07/008348.html

らしいけどなんなのwwww

どんだけ飼い慣らされてるんだろうw

(A)

ニコニコ大会議 http://www.nicovideo.jp/daikaigi

8/26 開場:18:00 開演18:30 →21:30までとすると3時間

¥5800

(Singer)

absorbhalyosy、that、is)

clear

けったろ

祭屋

タイツォン

蛇足

ぽこた

のある

野宮あゆみ

みーちゃん

らっぷびと

(Player)

事務員G

[Mint]

 [TEST]

 地味侍

 ショボン

 紅い流星

Singer= 13

Player= 5人

(B)

ライブ2009年12月

開場16:00、開演17:00、終演20:30 →3時間

\3500

(Singer)

ピコ

赤飯

recog

yonji

くりむぞん

Re:

疲れた男

ASK

祭屋

のある

野宮あゆみ

花たん

ルシュカ

サリヤ人

青もふ

halyosy

that

(Player)

事務員G

まらしぃ

[TEST]

ニケ

H.J.Freaks

色白

ショボン

あつし

ウサコ

(Dancer)

ゾンビーズ(withメイド隊)

13

暴君

kuu.

恐怖。

Ire

超監督

みどー

暴徒

47

阿部

DT-BOYS

Singer = 17人

Player = 9人

Dancer = 13人(組)

さて、(A)と(B)どっちに行きたいですか?wwwww

っていうかこれまでの他のライブを見ても大会議のレベルは異常www

#まぁ(A)も出演者が今後増えるだろうけど、増えればいいってもんでも。。w

2009-03-17

http://anond.hatelabo.jp/20090317131341

学校とかに広まったのはミクじゃなくてabsorb版だけどな。アンチミクに繋げたいだけなのはわかるが、ニュースソースすら見ないで言っても自分チンケさが浮き彫りになるばかりだぞ。

曲について、ちんまい脳みそで「どう考えてもしょぼい」なんて評価されても説得力ってもんが無いわ。

 
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