You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Over the years, there have been several memory and display technologies that served a particular niche for a while, only to be replaced and forgotten when a more suitable technology came along. One of ...

Abstract: Too much application of fertilizer can kill the plants and in irrigation, little by little application of fertilizer is better than one time bigtime fertilizing the plants. Water scarcity is ...

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