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Comment Re:chlorine? (Score 1) 224

The question is in what composition you have chloride, for example your 12" LP (polyvinylCHLORIDE) won't kill anyone except you play Xena the Warrior princess.

But this is why you should read the security warnings because you can get a reaction working to set chlorine(that from WWI) free.

Bleach
What is used in bleaches is HClO not Cl2, HClO is called hypochloric acid - strong oxidizer.

Pool
Yes, in big pools chlorine (enclosed in steel gas cans) is used.
Yes, it can be set free by acident.
Yes, there are emergency plans and safety precautions.

Comment It's the missuse of chemistry. / Abusing science. (Score 2) 224

Most chemical weapons were not invented to be weapons at first, but during the era when chemistry evolved, many compounds were created to be used in chemical processes, to produce things like poly vinyl chloride (for the old folks modern 12" LPs are made of this)

Phosgene for example. Till today is produced in tons and tons and tons. And this very day today you had a 100% chance to touch things or ingest things(medicine) were produced using phosgene or familiar compounds.

Not weapons kill people, people kill people, but this is not ment as a let go for engineers and scientists to use this as an excuse.

Comment The Revolution (DIVX) was ~1998/1999 (Score 1) 81

So there were moving pictures - from - the internet and sound.

And even before that was the "realplayer" and Flash was its honorable successor/competetor to the title security desaster(Realplayer got also ported to linux!! - yes and it worked).

And yes it was live streamed, I can remember that Tina Turner concert on Realplayer .. Tina was the most beautiful moving pixel I have ever seen!

Comment Re:Sounds like a business opportunity... (Score 1) 121

Actually your thought is a very good one, but if we miss that opportunity, and not convert the former "crudeoil" into CO2 ;)

landfill
But the landfills are actually unused energy reserves however during the last 40yrs. you will find there "Teflon" like compounds that when burnt will react to HF (fluoridic acid) which is very nasty stuff as it will etch your plastic to fuel machinery

And that's the problem.

(most "plastic" which could be PVC, PE, PP, etc.. is made from oil - in future it can be made from ethanol -> PE )

And thinking further:
Plastic is conserved CO2 so we should turn CO2 into plastic bags. It would be better to store/conserve it that way than to pump it into unreliable caverns.

CO2 dump at home in your private drawer. Called the bag stack.

Comment "ingenius tipps for an optimal system" (Score 1) 716

this is not a typo it's the from german hard translated headliner of the Sep/2014 monthly of the german Chip Linux magazine.

it also stated
- adjust unity
- remove crap
- increase speed

So, yes, most distros are either a heavy crap loaded like a lenovo-compaq-hp-acer craptop, or are uncomfortable as hell-

I stopped being aggrovated, I just started to use FreeBSD some 15 yrs. ago. when Mandrake turned bad and gotten fuzzier each release.

Comment Advise (Score 3, Insightful) 175

1.) don't be an asian helicopter mother
- you are not their parents

- best way to engage most children is when they have fun taking things step by step, with fun and encouragement

- some kids want a challenge, those are eager, give them a challenge they can handle, be present, wait for the question, don't explain things they want to tackle themselves

2.)
show them how they can let their computer + learned skills work for them
- understand what they are doing in school (don't introduce partial differential equations to a 5th grader except they ask you to do so)
- explain their current topic on math with the help of excel (no VBA)

-sine, cosine tables, sine charts etc..

3.)
The computer is a tool, make it a place to toy with things

4.)
- don't be ProfX
- use your empathy
- but actually the best choice would be to empower them to tackle their current tasks, a little surplus of knowledge won't hurt
- don't present big problems, demonstrate how you can approach a - school-world-problem by breaking it down,

These are computer/programming skills: to understand a problem, breaking it up into small understandable pieces then describing the whole problem, formulate a solution approach and testing that method.

With the help of a useful tool called computer+software.

Comment There is no single method. (Score 1) 251

There are multiple.

1.) simple sftp reachable cloud (very cheap, no need for special cloud software)

2.) root server (you can get these with ~4tb space minus the OS) for arround 20â (you don't need a power horse) even a vserver is ok, if it has the space and you can sftp into it
traffic is mostly multiple times storage cap

3.) having offsite sftp storage is great the connection+login/pass is encrypted + save the ssh-fingerprint and check for manipulation, only filezilla needed to retreive all data

otherwise you can automate many things like offsiting your archive hashes / etc.. via script, curl can pop3s and smtps your data.

With tcls "expect" you can automate sftp backups and automatic storage.

4.) Multiple independend hosts are also a nice idea

5.) -> Test your backup system Encryption
I suggest everything you store offsite and also onsite should be encrypted.

Everything you store offsite should have at least two layers of strong encryption using different crypt-algorithms

1.) AES or twofish/serpent

2.) additional to that
That big archive should be split into 50-100mb chunks of data and encrypted with their own hash hash value as key value
you need to store the hashes

3.) encrypt the hash lists

4.) store them in cheap or free email accounts

Comment FreeBSD - tutorial inside (Score 1) 403

Hi,
I've written a tutorial for installing freebsd on an encrypted root using a serial console. That should actually explain some things.

http://forums.smallnetbuilder....

Otherwise:

Get an installer image:
https://www.freebsd.org/where....

The release version is FreeBSD-10.1

try the memstick image
a "cp FreeBSD.img /dev/sdX" will copy it to stick

While you install:
don't install the package ports, you will get the freshest ones
through portsnap

Add an "admin" user make him member of group "wheel"
because that user can ssh and then "su" to root.

When you have installed FreeBSD

a.) run portsnap fetch extract
- after this your ports tree is up to date

b.) run freebsd-update fetch install
- after this your FreeBSD-system is up to date

c.) kill sendmail-demon
- after this you will feel no change at all

d.) installa samba via ports(verbosive) or via pkg add samba

you install things using the ports collection by enter the directory /usr/ports
where you choose the category for example the midnight commander can be found under "/usr/ports/misc/mc"

you start the installation using make install
afterwards you can do a make clean
or make distclean.

ports is "just" make-scripts

Hint:
svn is included in the FreeBSD base distribution
it can be called via svn-lite

So you can also checkout the current freebsd-head (FreeBSD handbook says how), browse the /usr/src directory or where yyou will then recognize that every command's source has a separate directory with make file etc..

Meaning you can now play with the source of the base distribution(userland) and kernel

FreeBSD is fun, and a base system really has a small footprint.

Comment Mathematics is to universial to turn nationalistic (Score 1) 187

The key to understanding why the whole debate is doubtable and nationalistic from the beginning, is to understand that general mathematics is a universal science.

You cannot invent mathematics.

(Remark: This should also be true with physics, these physics inventors haven't even their free energy device running so well it could power their cell phone.)

Basic mathematics like pythagorean theorem is discovered,
and Pythagoras didn't invent it, he discovered that just some basic relationships but he wrote down a universal formula..

(And I think he also managed to geometrically proof the theorem. I'm not sure)

So even if you find some of these so called pythagorean relationships and use the numbers in your construction - then if you don't write down a formula you have no theorem at all. And however sometimes a library burnes down and papyrus with the theorem is lost.

But again mathematics is universial, so if a theorem is truely universal it can be rediscovered. And this is what's happening, some pupils and students have the capability to rediscover mathematical principles using just their education they received to a certain point, with having never heard about before. Brilliant!

The real genius idea is after discovering a numerical relationship to write down a "general" formula, this is what he did.

Discoveries are made sometime, and sometime they are forgotten. It is possible that Pythagoras is just a "late" inventor, but understand the indian minister you need to understand that he is a hindu nationalist, and as any nationalist, he believes in the superiority of his "peer group".

This reveals an inferiority complex nationalistic indians are worried that their country was and is a develloping country - aside from their huge steps in science and engineering.

They just have too put their name on everything and claim everything, it's just sad, because these people will not stop there, where science and philosophy would return to a more rational debate.

Comment Re:Huh? (Score 1) 134

Actually, there are some "theorists" (like Gold) that pronounced & defended the abiotic theory of oil creation. Which directly goes into that direction, that only some of the oil is created from biological "residue".

Thus stating that due to this process oil reserves would be able to renew theirselves, as complex hydrocarbons are chemically produced without the help of bacteria with the earths crust, and therefore denying the existence of a "real" peak oil and that oil reserves are infinite according to their theorie as they renew their self.

Basically, it means that even without bacteria you can reform hydrogen, carbon and oxygene in succeeding chemical reactions to produce hydrocarbons (more complex than just methane) About the abiotic methane creation we know from cosmologists. Also looking at the saturn moon titan, were it seems that there are indeed huge amounts of abiotic created methane that concentrates in forms of seas.

Comment Re:Huh? (Score 1) 134

Sorry to devide the answer into more than one part,
but the scifi-solution you mentioned (off world) I'd like to argument against it.

Where: Titan
Why: Titans atmosphere and sea are liquid methane CH4 not because of life

Problem:
Adding matter to earth
- yes, we have an addition of matter to the earth (comets, meteorites)
- yes, we have a loss of mass (atmosphere)

At the moment the increase or decrease rate I think is at an equilibrium.

The solution to space mine(minerals) or prospect(hydrocarbons) would actually add matter to the earth and if the earth will increase mass so will our orbit around the sun decrease. I judge this effect not to be desired. It will get hot hot hot!

Yes, I don't give a thought to the transfer of kinetic energy from titan to the earth.

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