A dragonfly is an insect belonging to the order Odonata

A dragonfly is an insect belonging to the order Odonata, infraorder Anisoptera (from Greek anisos, "uneven" and pteron, "wing", because the hindwing is broader than the forewing). Adult dragonflies are characterized by large, multifaceted eyes, two pairs of strong, transparent wings, sometimes with coloured patches, and an elongated body. Dragonflies can be mistaken for the related group, damselflies (Zygoptera), which are similar in structure, though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold the wings folded at rest, along or above the abdomen. Dragonflies are agile fliers, while damselflies have a weaker, fluttery flight. Many dragonflies have brilliant iridescent or metallic colours produced by structural coloration, making them conspicuous in flight. An adult dragonfly's com pound eyes have nearly 24,000 ommatidia each.

Run seeks to create awareness on Alzheimer's

Residents from all walks of life came together on Sunday to participate in the Purple Run that was launched at Olcott School, Besant Nagar.

Electric bus in record-breaking journey

The 40ft Catalyst E2 Max bus - designed by Californian company Proterra - went 1,102.2 miles on a testing ground in New Carlisle, Indiana. Cities around the world are looking to use more electric vehicles for public transport, to combat air pollution. Some experts believe the bus's long journey could be a breakthrough moment for electric vehicles. The previous record of 1,013.76 miles was set by a light-duty passenger electric vehicle 46 times lighter than the bus.

Fluctuating Weight May Affect Your Blood Pressure; Try These Foods to Keep Healthy

Obesity is a cause of quite some health problems that you shouldn't ignore; one of them being blood pressure. According to the research presented at the American Heart Association (AHA) Council on Hypertension, AHA Council on Kidney in Cardiovascular Disease, American Society of Hypertension Joint Scientific Sessions 2017 in San Francisco, your fluctuating weight can influence blood pressure. The study looked at the impact of five health behaviours on blood pressure levels over a 25 year period.

Moto G5S Plus and Moto G5S Review

India late last month. Both promise new features and upgrades that will help Moto stay competitive. The company has been on a launch spree this calendar year, bringing new Moto E, Moto C, and Moto Z devices to the Indian market, plus the Moto X4 internationally. The reason for the rapid refresh of the G series, according to Lenovo, is that the Rs. 15,000 and above segment is seeing a steady rise in demand, and there has been a change in consumer spending. Will this strategy work this time around for Lenovo? Let's try to find out.

Surfacing too quickly from the ocean causes diver to swell up to double his size

Diving into the depths of the ocean may sound fun but one also needs to be extremely careful before taking the plunge. The bends or decompression sickness affecting people while diving can cause joint pain and breathing problems, but in extreme conditions it can leave a person terribly deformed.A fisherman in Peru suffered a shocking case of the bends after surfacing too quickly from a dive as his arms and hest ballooned. The man who dived to collect creatures from the sea floor has gained around 30 kg as doctors try to treat the deformity.

Tobacco may cause blindness: AIIMS docs

Tobacco not only causes cancer, its prolonged consumption may also lead to blindness, and often such cases are irreversible, doctors at AIIMS said on Friday. They also said studies have shown that those who smoke tobacco, significantly increase their risk of developing cataract compared to nonsmokers. Smoking or chewing tobacco over five to 10 years affects the optic nerve which may lead to visual loss, the doctors said. "Often such cases of blindness are irreversible. People know that smoking and chewing of tobacco causes heart disease and cancer, but vision loss and other eye problems due to tobacco are not widely known," said Dr Atul Kumar, chief of Dr R P Centre for Ophthalmic Sciences in AIIMS.