Saturday, January 14, 2017

Mysteries Science Can’t Explain: 1. Baghdad Batteries

1. Baghdad Batteries 


We as a whole realize that Benjamin Franklin was the first to really find and expound on power, recall that tempest where Ben was flying his kite with the key tied on it in 1752 and the kite was hit by lightning? Quick forward a couple of years to around 1800, and you can see that Alessandro Volta made the main cutting edge battery. All in all, in the event that we realize that power and batteries have just been found and utilized for a few hundred years, how then can the Baghdad Batteries be clarified? 

Found in 1936 in Iraq, at first look the batteries seemed, by all accounts, to be basic mud pots, however upon nearer assessment they were found to have a copper chamber with an iron bar inside. Fundamentally the outline had all the earmarks of being a primitive battery which current researchers have possessed the capacity to affirm by imitating the battery plan which delivered an electrical charge, regardless of the possibility that it was just a couple of volts. Much all the more intriguing is that researchers have found that a couple of the batteries discovered still had a slight charge in them.

The Baghdad batteries proceed with today to bring about theory on how a development going back around 2000 years prior could have the logical advances to make a working battery and what were they utilized for. There are essentially just two convictions on how the batteries were made. Some accept basically that the villagers made sense of it themselves, others however trust that the batteries were a blessing from a human advancement not of this world. With respect to they were utilized, a few researchers trust these batteries could have created power to power lights for the town, others trust they were utilized for electroplating, while still others trust they aren't batteries at everything except are just capacity holders for antiquated parchments. 


Whatever the genuine utilize was for these batteries, it appears that the topic of where did they originate from and what were they really utilized for may perpetually remain a secret. A critical truth to recollect about the batteries is that archeologists rush to call attention to that Iraq is thought to be the place both the Tower of Babel and the Garden of Eden were found and it is conceivable that numerous more strange ancient rarities might be covered up in this secretive land.

Wednesday, January 11, 2017

What is the difference between a USB 2.0 and a USB 3.0? Will USB 2.0 ports support USB 3.0 portable drives or pen drives?

What is the difference between a USB 2.0 and a USB 3.0? Will USB 2.0 ports support USB 3.0 portable drives or pen drives?

11 Answers
Shreyas Ravindra
Shreyas Ravindra, USB Engineer at Qualcomm
USB 2.0 devices can operate at a maximum of 480Mbps = High Speeds. USB 3.0 devices can operate at a maximum speed of 5Gbps = Super Speeds. Also USB 3.0 has more pins compared to USB 2.0 which has 4 pins, VBus, D+, D- and GND. There are a lot of other differences which you can see in USB.org - Welcome which specifies the details.

In simple layman terms, you can think of it this way that USB 3.0 devices are faster than USB 2.0 devices. In laptops generally they are the "blue" ports or some have a Susper Speed Written on them explicitly

Yes, USB 2.0 ports will support USB 3.0 Pen Drives. Only thing is they will operate at a maximum speed of 480Mbps and not more than that! :)

USB is always backward compatible until now. With Type C, you may have to buy a converter ! :( But that's how it is!


https://www.quora.com/What-is-the-difference-between-a-USB-2-0-and-a-USB-3-0-Will-USB-2-0-ports-support-USB-3-0-portable-drives-or-pen-drives

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