Alexander recorded his voice: 125 years ago!
Alexander Graham Bell
In this video you will get,
What Alexander Graham Bell says in his own voice record...
ভিডিও টিতে দেখানো হয়েছে...
তিনি কি বলেছিলেন তার রেকর্ড এ???
আর কিভাবেই বা রেকর্ড টি এত বছর সংরক্ষিত ছিল...
Alexander graham bell is one of the greatest scientist.
His one of the great invention is Telephone.
Yeah he is the inventor of telephone.
Alexander graham bell has an wonderful history.
Alexander Graham Bell, the man widely credited with inventing the telephone as we know it (though there is a longstanding debate over who actually was first), can be heard again today, some 128 years after he recorded himself counting and speaking in his laboratory in Washington, DC, saying:
"In witness whereof, hear my voice, Alexander Graham Bell."
The historic lost audio file — the first recording of Bell's voice — was retrieved by several researchers around the country using a technique developed at the Lawrence Berkeley National Laboratory
.
Video here...
#Alexander #Graham #Bell
