Showing posts with label analysis. Show all posts
Showing posts with label analysis. Show all posts

Insect Population Measured by DNA Analysis of Spider Webs

Spider webs are advanced pieces of evolutionary engineering. They are also collecting vats for what lives in the neighborhood. The DNA of what a spider had for dinner remains on the web for months.
Black widow spider catching a lizard on its web
Silk from spiders webs is in demand for potential pest management, conservation, biodiversity monitoring and biogeography. It is a natural source of accumulated data and analysis of it is informative. If the DNA makeup of a web changes then something is wrong.

In the tests, black widow spiders were kept alive by feeding them with crickets. When a spider died its DNA remained on the web for 88 days. In the wild, the net of the web catches insects, small animals and flora debris.

Going out and getting some web silk is proving to be a valuable way of monitoring changes in spider populations, particularly when new species move into an area. Importantly, an eye can be kept on those on the endangered list. The method is only good for small animals because large ones
take the whole web with them.
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Nexus 7 Review - Poor, Do Not Buy!

You have to be careful buying new tech products. There is a belief out there that a new version is always better than the old one. This is not always the case. Take for instance the new Nexus 7. A lot has been written about this with some rave reviews.

I don't know what some of these reviewers are on, but they certainly are not seeing things clearly - some bias is there. The widely held view that buying the latest Nexus 7 is the road to Nirvana is wrong. If you have another Android device with the same login you will not get an automatic restore. It just does not work because Google picks up the two Android devices. A trip into the Play Store will be necessary. Click on the icon in the top left and "My Apps" will be shown. You have to click "All" to see the apps you have paid for.

Re-installing each one in turn is the requirement and don't think all your data is automatically backed up. You discover that you should have backed up the data for each app separately before you dumped the perfectly good older version. A thing that you will regret.

The only virtue of the new Nexus 7 is that it is thinner. That sums it up. Despite having stereo speakers one at each end it does not cut the mustard. What a stupid idea having stereo on such a small device! Sound quality is very poor indeed. It really is disgraceful. If you plug it into a hi-fi you have to turn the volume up to number 22. This compares with 10 using the old version of Nexus 7.

Another odd thing is the hi-fi volume can be turned to maximum and it doesn't get louder - it gets more distorted. The old Nexus had beautiful base and full hi-fi volume could not be set as it was too loud. There is just a pinging "sort of" base with the new one. It is an odd sound. You cannot enjoy listening to music, podcasts only I would say. Even then there is only treble, no base at all from the two speakers. There was some base on the older version playing on its own.

A mystery to me is that all the BBC apps have disappeared from the Play Store. Has Google had a falling out with them or something. This sudden parting seems strange.

Don't be reckless and buy the new Nexus 7. It is a waste of money. No wonder the price has fallen. Many customers would return it if they kept the receipt. Oh, how I miss my old Nexus that unfortunately was dropped and became stuck in the "ON" position. Google picked that up and would not do an automatic install.  Buying online may be easy, but it is risky.  I should have gone to a store and taken it for a test drive.  You do learn something every day.
Technology by Ty Buchanan
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Paranormal Research Continues in Russia

If you thought that research into the ethereal world of religion and beliefs have gone - think again. The Russians are pouring millions of rubles into analyzing the paranormal. Telekinesis and mind control are the main areas studied.

There has been continuous planned research beginning in 1917 and officially ending in 2003, though it is believed that it is still ongoing. It is estimated to have cost more than a billion dollars.

Psychotronics may sound like something to do with robotics, but it the Russian word for parapsychology. Russians still strongly believe that the human brain, being an electronic device, is capable of transmitting and receiving information.

There is film of a subject moving objects around a table purely by thought. Even thinking about it could stimulate the immune systems of humans and plants. Some people were influenced unknowingly by others forcing them to do things purely by targeted thought.

Igor Smirnov was quietly brought out of retirement in 2007 by the Russian government to start his research again. He is called the father of psychotronic weapons.
Science by Ty Buchanan
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