Vaidnyanik Khelani

THERE ARE MANY CHILDREN WHO WANT TO DO SOMETHING, BUT MANY A TIMES IT BECOMES DIFFICULT FOR THE PARENTS AS WELL AS THE CHILDREN TO UNDERSTAND WHAT THIS SOMETHING IS. THEY ARE CONFUSED. THIS BOOK WILL BE AN EXCELLENT GUIDE FOR SUCH CHILDREN. THE SCIENTIFIC TOYS MENTIONED HERE AND DISCUSSED HERE ARE EASY TO MAKE. THEY WILL SOLVE THE PURPOSE OF ENTERTAINING YOUR CHILDREN AS WELL AS MAKING THEM UNDERSTAND THE REAL THEOREM BEHIND THE WORKING OF IT....???? ★★★★★★? ???? ??? ★★★★★★? ?????; ?? ????? ??? ?????, ?? ★★★★★★? ????? ★★★★★★??? ★★★★★★?? ★★★★★★ ????? ????, ★★★★★★★★★★★★? ?? ★★★★★★ ★★★★★★ ★★★★★★???? ???? ? ?? '★★★★★★??? ?????' ???? ????-???? ★★★★★★???? ★★★★★★★★★★★★? ????? ★★★★★★ ????...