Khurram Altaf

Khurram Altaf

Khurram Altaf
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The Sliding Rocks of Racetrack Playa. One of the most interesting mysteries of Death Valley National Park is the sliding rocks at Racetrack Playa (a playa is a dry lake bed). These rocks can be found on the floor of the playa with long trails behind them. Somehow these rocks slide across the playa, cutting a furrow in the sediment as they move.   Some of these rocks weigh several hundred pounds. That makes the question: "How do they move?" a very challenging one.

The moving boulders of Death Valley, a mystery. No one has seen them in motion! The 200 pound rocks are always seen with trail marks. No one knows for sure exactly how the rocks move - although a few have come up with some good explanations.

Dua to read, remember and share with others.

Dua for Protection from all serious and life-threatening illnesses: "Allah humma inni AA-oothu bika minal junoo-ni wal juthaami wal barasi wa sayyi-il asqaam." Oh Allah, I seek Your refuge from insanity, mutilation, leprosy and from all serious illnesses.

A 5-megabyte hard drive loaded onto a plane in 1956. The system, called a 305 RAMAC, cost $3,200 per month to lease. The Volume and Size of 5MB memory storage in 1956. In September 1956 IBM launched the 305 RAMAC, the first computer with a hard disk drive (HDD). The HDD weighed over a ton and stored 5MB of data.

Guess What This Is? Answer below. It's a hard disk drive . With 5 MB of storage. In September 1956 IBM launched the 305 RAMAC, the first 'SUPER' computer with a hard disk drive (HDD). The HDD weighed over a ton and stored a 'whopping' 5 MB of data.