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learn

Where does the $ come from? From Mexico, of course


Mental Floss replied to the question from above and it seems that the most cited theory is that the origins of the $ sign are from Mexican Peso. They had a P and an S an, with the time, it is believed that the US adopted a S over P so that there is currently the dollar sign $.

As for the truth, no one know for sure what and how happened, but it is know that the change happened in the last years of the 18th century. By 1801 and beyond US was already suing the $ sign.

Categories
geek learn tech

The first touchscreen? Well. CERN invented that. And the web, of course.


The first touchscreen ever invented was CERN’s SPS Control System that had a display with buttons which could be touched. The display would show tree, branches and leaves in order to help the operator run the entire facility with only a couple of touches.

The touchscreen was developed at CERN in 1977 by Bent Stumpe, a Danish electronics engineer, for the control room of CERN’s accelerator, the SPS (Super Proton Synchrotron).

A lot of details can be read in the video description from here:

Modern touchscreen technology, as used in smart phones and tablets, still uses the fundamental design principle of the capacitive touchscreen panel developed at CERN. Modern touchscreens consist of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO).

As the human body is also an electrical conductor, touching the surface of the screen results in a distortion of the screen’s electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing.

and

So whenever anyone asks “what has CERN done for the world?”, along with the World Wide Web, all the modern smartphone and tablet touchscreen technology started there too, proving once again that science is an engine of prosperity and that the technology being formed there now may very well end up in your pocket a few decades down the line with an entire industry invented behind it.

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learn science

Bats are a farmer’s best friend


Joe Hanson explains why bats are such great creatures and why they are a farmer’s best friend. First things first: they are mammals that have their hands modified in such a way that they are now wings. Also, bats see as any other animal would so the myth that they are blind in false.

Also, Joe went to Bracken Cave, Comal County, TX, Us to learn more about bats. In there there are 20+ million Mexican fruit bats, the largest gathering of bats in the world. Bat Conservation International invited him to see the incredible world of bats and he found out that these bats eat up to 100 tons of insects a single night helping farmers by clearing up those nasty insects that will damage crops.

Bats, we love you. Hollywood, spot displaying bats as savage beasts that cling to our foreheads, ok?

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learn on the web tech

Shellshock bug: drop everything now and ask your hosting provider if they updated Control Panel


The sehllshock bug is a vulnerability in the bash program inside Linus servers. Bash is a comand line interface that allows you to run programs and instructions by comand line only. Its like Command in Windows, but for servers. That vulnerability has existed for a long time, but they discovered it just now. Tom Scott explains what it is and what it does.

Ask your hosting provider if they ran the patches so that you won’t see your sites deleted or otherwise compomised.

Read more:
Sucuri about Bash vulnerability
Free Software Foundation about the shellshock bug
Redhat about the bug

Stay safe, guys!

Categories
geek learn tech

The best AMD APU upgrade? A dedicated graphics card. I LOL’d


Not much to say about this, actually. APU processors from AMD do a fine job in using those processors as graphics cards too, but they are weak. You may use a R7 270x in dual mode with the APU, but it won’t help too much.

The answer is always: dedicated graphics card. This is why I like the FX line of processors. They have to crunch numbers and a dedicated graphics card will handle the video games as they should. Separation of power in a gaming pc, bro.

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learn tech

Mindblow #87:


Kevin, from Vsauce2, has a new selection of science, tech and amazing stuff that needs to be shared all over the web. You can find out about augmented reality glasses, that lets you manipulate virtual objects by superimposing them over images from your surrounding.

You will then be able to play chess or Minecraft with your buddies in your own house.

Also, jetpack for runners. Never thought that such idea could be possible. It seems that such a small jetpack can help a runner run 1 mile in over 5 minutes and will help anyone run a mile in 4 minutes in the future.

You will find out about smart headlights right at the end of the video. Those headlights shoudl adapt to any condition and make sure they offer the best lighting for you and for other crossing your way. Neat, huh?

Categories
learn science

Sleep related wows: sexsomnia and sleep drunkenness


I never knew there is a sex and sleep related disorder: sexsomnia. It means that people that have this disease are walking around in their sleep and having sex. Also, it seems that one guy was acquitted of rape because of such disorder. I still can’t believe such disease can exist.

Also, what is sleep drunkenness? sleep drunkenness or severe sleep inertia is when you wake up suddenly and you’re extremely disoriented. You won’t be able to make heads or tails of your life for 15 minutes and you may go to work in your underpants if you don’t wait long enough to be fully awake.

You experience sleep drunkenness when you are awoken up in the REM stage of your sleep, the stage in which you sleep the deepest sleep.

Categories
science

Do you love the truth science brings us? Sense About Science needs our help

Sense About Science, the guys who created trustworthy guides about homeopathy lies (this one too), detox scams, are in need of donations. You can help too. You can find more info on their donations page.

We need to help groups of people who want to further the cause of science. Without having a ferm scientific knowledge we are in danger of killing ourselves when we do not accept vaccines or use homepopathic treatments that will never help us.

They also have a page with great resources. Those things require money, time and skilled people to work with.

Below is the email I’ve got from Sense About Science. Thanks, guys, for your hard work!


You know how much understanding evidence matters for people to play a full and informed role in society. When an animal rights group claims milk causes autism, or the Express runs a double-spread on untested cures for cancer, people need to ask for evidence and they need a place to go for reliable and trustworthy information about evidence.

In the last year, 95% of donations to our work came from individuals and this made up almost a quarter of our funds. That support has provided us with the essential independence to be that trustworthy source of expertise and evidence.

What we do affects people’s lives as well as policies and behaviour. I get emails from people like Nickie Hallam, who has MS, who after reading our guide about miracle cures told me, “I wish I’d read something like this 20 years ago. I may have saved angst, money and possibly aggravating my condition.”

Our ‘Ask for Evidence’ campaign is enlisting more of the public in our efforts and this could make it possible for us to do a lot more, and more effectively. With proper resources for understanding evidence and a serious public education campaign we can get more people demanding evidence from public figures and companies. Ask for Evidence is starting to light some fires under all sorts of organisations. Product claims have been withdrawn, politicians have apologised and vulnerable patients have been helped.

But we are only going to be able to build on this with some serious funding help, which is why in October we’re‎ launching an appeal to raise £2.6 million over five years.

Can you imagine a sustainable public campaign funded by individuals at every level? We can. For this to be successful, I need to secure some more founding donations at each of the levels of giving that I am setting out – this is essential to inspire others when the appeal becomes public in October.

So whatever you could give now would work twice for us – directly affecting what we can do and encouraging others to give too.

‎Do you think you might be able to help? Below are examples of how gifts can be structured over time. For example, a gift of £1000 can be given as £20 a month for just over four years. There is information about how to make a gift on our donation page, or please do call or email me to talk about it.

Categories
geek science

13 misconceptions about global warming


Derek Muller tells us about 13 misconceptions about global warming. Since climate change is a big subject to speak of and it is hard to understand, it may suffice to say that the way our industries worked in the last 200 years have put a great toll on our atmosphere, namely we have spewed out a lot of CO2 and other toxic gases in the air.

This will lead to the atmosphere trapping more and more heat in the air, which leads to more ice melting from the polar areas. Then that leads to floods, a ton of habitats being destroyed, and many species being endangered. Global warming could also lead to more clouds in the sky which may block much of the sun light, which, in turn, can lead to cooler temperatures than we’d expect.

Usually the changes would not be that big to destroy humanity, but they would be enough to change the geographic landscape in many areas due to flooding and it would be dangerous for many species of animals. We need to care for those too.

Categories
geek on the web tech

Internet firsts: see 12 of them now


The guys at Anyhoo have created a list of 12 historical events in the world of the internet. You can learn who invented the internet and read about few of these 12 internet first:
1971, first email – sent by Ray Tomlinson and contained the text QWERTYUIOP
1978, first spam email – sent by Gary Turk trying to sell computers
1985, first registered domain – symbolics.com
1987, first animated GIF – created by CompuServe and was about a flying airplane
1989, first search engine – created by a Canadian student and it was called Archie
1992, first image uploaded to the internet – the image of The Horrible Cernettes, a group of female scientists working at CERN and singing in their spare time
19… hold on. The rest can be seen in the video from above.