Observation of the optical and spectral characteristics of ball lightning.
نویسندگان
چکیده
Ball lightning (BL) has been observed with two slitless spectrographs at a distance of 0.9 km. The BL is generated by a cloud-to-ground lightning strike. It moves horizontally during the luminous duration. The evolution of size, color, and light intensity is reported in detail. The spectral analysis indicates that the radiation from soil elements is present for the entire lifetime of the BL.
منابع مشابه
Could Some Ball Lightning Observations be Optical Hallucinations Caused by Epileptic Seizures?
The great difficulty of encompassing all observed features of ball lightning into a single theory makes it highly probable that many observations and experiences which have no connection to ball lightning are also categorized as ball lightning experiences. In this note we compare the eyewitness reports of ball lightning and the symptoms of epileptic seizures of the occipital lobe as described i...
متن کاملتولید و بررسی گوی پلاسمایی و تبدیل آن به جت پلاسمای فشار اتمسفری موج‌میکرو
In this work, we first produced microwave plasma ball, then changed the ball into a microwave plasma jet by flowing a working gas through a nozzle. The effect of working gas on the thermal characteristics of the plasma ball and atmospheric pressure microwave plasma jet was investigated. We used resonant absorption scheme by a metallic antenna inside a chamber in which led to the ionization of s...
متن کاملLA - 3755 80 ^ LOS ALAMOS SCIENTIFIC LABORATORY or the University of California
ColHaated 50*.field photometers were operated during tße 1965 lightning study to obtain data for an analysis of the production of false alarms in air-fluorescence nuclear-explosion detection systems. Detectors were employed in spectral regions useful for air-fluorescence detection! 591* X [Ife* HI (0,0)] and 8900 A [Ife IP (1,0)], both of which are continum channels for lightning; and at wavele...
متن کاملObservations of Ball-Lightning-Like Plasmoids Ejected from Silicon by Localized Microwaves
This paper presents experimental characterization of plasmoids (fireballs) obtained by directing localized microwave power (<1 kW at 2.45 GHz) onto a silicon-based substrate in a microwave cavity. The plasmoid emerges up from the hotspot created in the solid substrate into the air within the microwave cavity. The experimental diagnostics employed for the fireball characterization in this study ...
متن کاملTracks of Ball Lightning in Apparatus?
Researchers of electrical discharge and electrolysis experiments have been finding microscopic markings that are unusual and anomalous. It is possible that these markings are made by microscopic objects that are in the size range of 400–0.1 Åm. These objects may be a type of microscopic ball lightning. They may share the anomalous characteristics of natural ball lightning. They are also finding...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 112 3 شماره
صفحات -
تاریخ انتشار 2014